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CST Science Review 2013
CST Science Review 2013
CST Science Review 2013
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CST Science Review 2013

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  • 1. CST Review
  • 2. CST PracticeSMART Test
  • 3. CST Practice SMART Test Instructions1. Use your notes and graphic organizers to answer each of the CST release questions.2. Record your answers on the answer sheet.3. Enter your answer using the SMART Responder. • Make Sure your answer is correct before you press enter.4. The Responder will tell you if your answer is correct.5. If it is not correct, use your notes and graphic organizers to find the correct answer and change it on your answer sheet.
  • 4. CST Practice SMART Test
  • 5. CST Practice SMART Test
  • 6. CST AnswerBoard Review
  • 7. CST Review States of Matter
  • 8. Brain Pop BrainPop States of Matter
  • 9. Brain Pop BrainPop Matter Changing States
  • 10. States of MatterGraphic Organizer Page 53 tu dy S
  • 11. CST Review Questions23
  • 12. How are atoms and molecules arranged in a gas? Movement of Molecules Move Move Fast Vibrate Hit Things Freely e n e e n re en g r ye gr ygy solids liquids gases
  • 13. CST Review Questions23
  • 14. CST Review Questions23
  • 15. CST Review Questions40
  • 16. How do substances change states (phases)? Atoms & molecules are arranged differently in solids, liquids, & gases. Close Space Very FarTogether Between Apart energy energysolids liquids gases
  • 17. CST Review Questions40
  • 18. CST Review Questions40
  • 19. CST Review Motion: Speed and Velocity
  • 20. Cornell Notes Page 87Title: Motion Date: 3/13/2012 Cue Column Notes Column Question (Answers) Question 4: IV. Speed is the distance an object travels in one unit of time. What is speed? A. To calculate speed, divide the distance an object travels by the amount of time it takes to travel that distance. Speed = Distance tu dy Time S B. The speed equation can be rewritten to solve different types of speed problems. Distance Speed Time Copyright Richards 2009
  • 21. CST Review Questions
  • 22. What is velocity?Velocity has speed and direction:velocity = speed and direction = 400 m/s east
  • 23. CST Review Questions
  • 24. CST Review Questions
  • 25. CST Review Questions
  • 26. CST Review Questions Which ones have nothing to do with velocity?
  • 27. What is velocity?B. Velocity is speed and direction. It tells how fast an object is moving and what direction it is moving in.
  • 28. What is velocity?C. An equation for velocity could be velocity = speed and direction
  • 29. CST Review Questions Which ones have nothing to do with velocity?
  • 30. CST Review Questions related to velocity Which ones have nothing to do with velocity? related to velocity
  • 31. What is acceleration?B. Acceleration is how much the speed or direction of velocity changes.
  • 32. CST Review Questions related to velocity Which ones have nothing to do with velocity? related to velocity related to velocity
  • 33. CST Review Questions related to velocity Which ones have nothing to do with velocity? related to velocity related to velocity
  • 34. CST Review Questions
  • 35. CST Review Questions
  • 36. What does the slope of the line tell us about speed? The slope of the graph is the speed. slope = speed Distance (m) Speed = 10 miles/hr
  • 37. CST Review Questions
  • 38. CST Review Questions
  • 39. CST Review Questions
  • 40. CST Review Questions
  • 41. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Speed = Distance Time
  • 42. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Speed = Distance Time
  • 43. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Distance Speed Time
  • 44. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Distance Speed Time
  • 45. CST Review Questions Speed = Distance Time
  • 46. CST Review Questions Distance = ? Time = ? Speed = Distance Time
  • 47. CST Review Questions Distance = ? Time = ? Speed = Distance Time
  • 48. CST Review Questions Distance = 10m Time = 5 min Speed = Distance Time
  • 49. CST Review Questions Distance = 10m Time = 5 min Speed = Distance Time = 10 meters 5 minutes
  • 50. CST Review Questions Speed = Distance Time = 10 meters 5 minutes = 2 meters/minute
  • 51. CST Review Questions Speed = Distance Time = 10 meters 5 minutes = 2 meters/minute
  • 52. CST Review Questions
  • 53. CST Review Questions
  • 54. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Distance Speed Time
  • 55. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Distance Speed Time
  • 56. CST Review Questions Distance Time
  • 57. CST Review Questions Distance Time
  • 58. CST Review Questions Distance Time
  • 59. CST Review Questions Distance = Time =
  • 60. CST Review Questions Distance = 18m - 0m Time =
  • 61. CST Review Questions Distance = 18m - 0m Time = 10s - 4s
  • 62. CST Review Questions Distance = 18m - 0m Time = 10s - 4s = 18m = 3m/s 6s
  • 63. CST Review Questions Distance = 18m - 0m Time = 10s - 4s = 18m = 3m/s 6s
  • 64. CST Review Questions
  • 65. CST Review Questions
  • 66. CST Review Questions
  • 67. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Distance Speed Time
  • 68. What is speed?What is the distance? Distance Speed X Time
  • 69. What is speed?What is the distance?Distance = Speed X Time
  • 70. CST Review Questions Distance = Speed X Timespeed
  • 71. CST Review Questions Time = 2 seconds Distance = Speed X TimeSpeed = 10 m/s
  • 72. CST Review Questions Time = 2 seconds Distance = Speed X TimeSpeed = 10 m/s 10m/s X 2s
  • 73. CST Review Questions Time = 2 seconds Distance = Speed X TimeSpeed = 10 m/s 10m/s X 2s 20m
  • 74. CST Review Questions Time = 2 seconds Distance = Speed X TimeSpeed = 10 m/s 10m/s X 2s 20m
  • 75. CST Review Questions
  • 76. CST Review Questions
  • 77. CST Review Questions
  • 78. What is speed?B. The speed equation can be rewritten to solve different types of speed problems. Distance Speed Time
  • 79. What is speed?What is the distance? Distance Speed X Time
  • 80. What is speed?What is the distance?Distance = Speed X Time
  • 81. CST Review Questions Speed = ? Time ?
  • 82. CST Review Questions Speed = ? Time ?
  • 83. CST Review Questions Speed = 9 km/h Time ?
  • 84. CST Review Questions Speed = 9 km/h Time 30 min = ?h
  • 85. CST Review Questions Speed = 9 km/h Time 30 min = .5h
  • 86. CST Review Questions Speed = 9 km/h Time 30 min = .5h Distance = Speed X Time =
  • 87. CST Review Questions Speed = 9 km/h Time 30 min = .5h Distance = Speed X Time = 9km/h X .5h =
  • 88. CST Review Questions Speed = 9 km/h Time 30 min = .5h Distance = Speed X Time = 9km/h X .5h = 4.5km
  • 89. CST Review Questions Distance = Speed X Time = 9km/h X .5h = 4.5km
  • 90. CST Review Questions
  • 91. CST Review Questions
  • 92. CST Review Questions
  • 93. What is speed?What is the time? Distance Speed Time
  • 94. What is speed?What is the time? Distance Speed Time
  • 95. What is speed?What is the time? Time = Distance Speed
  • 96. CST Review Questions Distance = ? Speed = ? Time = Distance Speed
  • 97. CST Review Questions Distance = ? Speed = ? Time = Distance Speed
  • 98. CST Review Questions Distance = 100m Speed = ? Time = Distance Speed
  • 99. CST Review Questions Distance = 100m Speed = 2 m/s Time = Distance Speed
  • 100. CST Review Questions Distance = 100m Speed = 2 m/s Time = Distance Speed
  • 101. CST Review Questions Distance = 100m Speed = 2 m/s Time = Distance Speed = 100m 2m/s
  • 102. CST Review Questions Time = Distance Speed = 100m 2m/s = 50 s
  • 103. CST Review Questions Time = Distance Speed = 100m 2m/s = 50 s
  • 104. CST Review Astronomy
  • 105. Brain Pop BrainPop Solar System
  • 106. Brain Pop BrainPop Stars
  • 107. Brain Pop BrainPop Comets
  • 108. Brain Pop BrainPop Galaxies
  • 109. Brain Pop BrainPop Asteroids
  • 110. Class Work tu dy S Copyright Richards 2009
  • 111. Class Work tu dy S Copyright Richards 2009
  • 112. CST Review Questions36
  • 113. What are comets?I. Comets are chunks of ice and dust with long, narrow elliptical orbits.
  • 114. What are comets?1. Comets have a solid nucleus made of frozen ice, gas and dust.
  • 115. CST Review Questions36
  • 116. CST Review Questions36
  • 117. CST Review Questions32
  • 118. What are the types of galaxies?1. The types of galaxies are: Spiral Galaxies Elliptical Galaxies Irregular Galaxies
  • 119. CST Review Questions32
  • 120. CST Review Questions35
  • 121. How are stars classified?Stars are the ONLY things inthe universe that give off light.
  • 122. CST Review Questions35
  • 123. CST Review Questions35
  • 124. CST Review Questions34
  • 125. What units are used to measure distance of space objects?Astronomical Units measure thedistances between planets and theSun in our Solar System. Sun
  • 126. What units are used to measure distance of space objects?Light-years are used for measuringthe distances of stars and galaxies.
  • 127. CST Review Questions34
  • 128. CST Review Questions34
  • 129. CST Review Questions33
  • 130. What is a galaxy?A. Galaxies can contain from a few billion to trillions of stars..
  • 131. CST Review Questions33
  • 132. CST Review Forces
  • 133. Brain Pop BrainPop Force
  • 134. Page 83Force Graphic Organizer t ud y S
  • 135. Special Forces Graphic Organizer Page 87 t ud y S
  • 136. Cornell Notes Page 86Title: Buoyancy Date: 3/8/2012 Questions Notes (Answers) Question: X. Two things cause objects to float and sink: DensityWhat makes things and Buoyancy. float? A.If an object has LESS density than the liquid it will FLOAT. B. If an object has MORE density than the liquid it will SINK. C. Something with a higher Density than water can float because of Buoyancy. tudy S Density makes the Buoyancy makes the flattened ball ball sink. float.
  • 137. Cornell Notes Page 86Title: Buoyancy Date: 3/8/2012 Questions Notes (Answers) Question: XI. Buoyancy is the force of a liquid pushing up on an What are buoyant object. forces? A.Buoyant force is equal to gravity when an object floats. Force of Gravity pushes down. Buoyant Force of water pushes up . B. When an object is flat, buoyancy is greater because the liquid pushes up against a larger surface area. . tudy Buoyant Forces of liquid push up. S
  • 138. CST Review Questions
  • 139. How is force described?II. Force has a strength (magnitude) and a direction.
  • 140. CST Review Questions
  • 141. CST Review Questions
  • 142. CST Review Questions
  • 143. How do forces add and subtract?A. Forces pushing or pulling in the same direction add. 1 N right + 1 N right These forces add.
  • 144. How do forces add and subtract?B. Forces pushing or pulling in opposite directions subtract. 1 N right 1 N left _ These forces subtract so the box doesn’t move.
  • 145. CST Review Questions
  • 146. CST Review Questions
  • 147. CST Review Questions
  • 148. CST Review Questions
  • 149. CST Review Questions
  • 150. CST Review Questions .5cm = 2N
  • 151. CST Review Questions 0.5 cm = 2N 3.0 cm ?
  • 152. CST Review Questions 0.5 cm = 2N 3.0 cm 12N
  • 153. CST Review Questions 0.5 cm = 2N 3.0 cm 12N 3.5 cm ?
  • 154. CST Review Questions 0.5 cm = 2N 3.0 cm 12N 3.5 cm 14N
  • 155. CST Review Questions .5cm = 2N 3.0 cm = 12N 3.5 cm = 14 N
  • 156. CST Review Questions .5cm = 2N 3.0 cm = 12N 3.5 cm = 14 N
  • 157. CST Review Questions
  • 158. CST Review Questions What will make you have to push harder?
  • 159. CST Review Questions What will make you have to push harder? mass ?
  • 160. How does mass affect force?VIII. When an object has more mass, it requires a greater force to make it move. Books = 800 kg Leaves = 8 kg 5 N Right 500 N Right
  • 161. How does mass affect force?A. If something is heavier, you have to push harder to move it. Mass of Bricks = 1000 kg 2000 N Right Distance moved = 5 feet Mass of Feathers 2 N Right = 1 kg
  • 162. CST Review Questions What will make you have to push harder? harder or easier to push?
  • 163. CST Review Questions What will make you have to push harder? easier to push harder to push
  • 164. CST Review Questions What will make you have to push harder? easier to push harder to push friction ?
  • 165. What is Friction?XII. Friction is a force which slows down or stops an object’s motion. Force of the Boy pedaling his 50 N Right bicycle forward. Force of friction of the 20 N Left wheels on the road
  • 166. What is Friction?A. Friction always goes in the opposite direction of the force causing the motion.Force causing Friction slowing motion down motion 40 N Right 190 N Left
  • 167. What is Friction?B. Friction is caused by objects or materials rubbing against each other. Friction of Air rubbing against an Friction of airplane. Friction ofwheels on the hands rubbing road together. Friction of metal on snow.
  • 168. CST Review Questions What will make you have to push harder? easier to push harder to push harder or easier to push?
  • 169. CST Review Questions What will make you have to push harder? easier to push harder to push easier to push easier to push
  • 170. CST Review Questions What will make you have to push harder? harder to push
  • 171. CST Review Questions What will make you have to push harder?
  • 172. CST Review Questions
  • 173. CST Review Questions
  • 174. CST AnswerBoard Review
  • 175. CST Review Acids & Bases and pH
  • 176. Brain Pop BrainPop Acids and Bases
  • 177. StudyClass Work Page 49 Copyright Richards 2009
  • 178. CST Review Questions41
  • 179. CST Review Questions41
  • 180. How can substances be classified? Acids Neutral Bases1. Has pH1 - pH6 1. Has pH7 1. Has pH8 - pH142. Turns litmus red 2. Does not change 2. Turns litmus blue litmus3. Tastes sour 3. Tastes bitter
  • 181. CST Review Questions41
  • 182. CST Review Questions41
  • 183. CST Review Elements and the Periodic Table
  • 184. Brain Pop BrainPop Metals
  • 185. Metals Non-Metals Metalloids Foldable Page 28 Non-Metals Metalloids Metals Study What is Hydrogen Doing Here? Hydrogen belongs in Group 1. It was put here because Hydrogen is a non-metal.
  • 186. CST Review Questions27 In which region of the table would nonmetals be found? A 1 B 2 C 3 D 4
  • 187. How What are the general types of elements in arranged intable? are electrons, protons and neutrons the periodic the atom? 8 Elements form a dividing line between metals and nonmetals. Po dividing line
  • 188. How What are the general types of elements in arranged intable? are electrons, protons and neutrons the periodic the atom?These elements are called metalloids. Po metalloids
  • 189. What are the general types of elements in the periodic table?Most of the elements in the periodictable are metals to the left of the line. Po Metals
  • 190. What are the general types of elements in the periodic table?The elements to the right of the zigzagare Non-metals. Po Non-metals
  • 191. CST Review Questions27 In which region of the table would nonmetals be found? A 1 B 2 C 3 D 4
  • 192. CST Review Questions27 In which region of the table would nonmetals be found? A 1 B 2 C 3 D 4
  • 193. Analyzing the Periodic Table Graphic Organizer Page 26 1 181 2 13 14 15 16 1723 3 4 5 6 7 8 9 10 11 124567 6 7
  • 194. Analyzing the Periodic Table Graphic Organizer Page 26 1 2 3-12 13 14 15 16 17 18 TransitionAlkali Alkaline Boron Carbon Nitrogen Oxygen Inert Halogens Metals EarthMetals Family Family Family Family or Noble Metals Gases
  • 195. CST Review Questions26
  • 196. How are electrons, protons and neutronsgases? What are the noble (inert) arranged in the atom? The inert (noble) gases are the elements in Group 18 of the periodic table. Inert Gases Silicon
  • 197. CST Review Questions26 FALSE
  • 198. What are the general types of elements in the periodic table?. Non-metals Po metalloids Metals
  • 199. CST Review Questions26 FALSE TRUE
  • 200. E-Review Question 1 ExplanationThe number of protons of an element is called the atomic number. Carbon Hydrogen Oxygen 6 protons 1 proton 8 protonsAtomic Number = 6 Atomic Number = 1 Atomic Number = 8
  • 201. How many protons do atoms have?1. Atomic numbers are the smaller numbers on the periodic table. C 6 Atomic Number (smaller number on chart) Carbon 12
  • 202. How many protons do atoms have?All elements have DIFFERENTatomic numbers. C 6 Atomic Number (smaller number on chart) Carbon 12
  • 203. CST Review Questions26 FALSE TRUE FALSE
  • 204. CST Review Questions26
  • 205. Metal Nonmetal Metalloid Foldable Study
  • 206. CST Review Questions29
  • 207. CST Review Questions29 (metalloids)
  • 208. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedV. Metals are identified by their physical properties. Metals Silver Platinum Gold Copper
  • 209. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: Metals Silver Platinum 1. Shininess Metals are shiny. Gold Copper
  • 210. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 2. Hardness Silver Metals are hard. Platinum Gold Metals Copper
  • 211. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 3. Malleable Silver Metals can be pounded into different shapes. Platinum Gold Metals Copper
  • 212. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 4. Ductile Silver Metals can be made into a wire. Platinum Gold Metals Copper
  • 213. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 5. Conduct Heat Silver Metals conduct heat. Platinum Gold Metals Copper
  • 214. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 6. Conduct Electricity Silver Metals conduct electricity. Platinum Gold Metals Copper
  • 215. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 7. Solids at room temperature Most metals are solids. Silver (Mercury is the only liquid metal) Gold Platinum Metals Copper
  • 216. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 8. High Melting Temperature Silver Metals have high melting temperatures. Platinum Gold Metals Copper
  • 217. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inNon-metals have very few of the characteristics of metals. Non-metals Nitrogen Iodine Bromine Carbon Oxygen
  • 218. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 1. Gases at Nitrogen Iodine Room Bromine Temperature Some Non-metals are gases. Carbon Oxygen
  • 219. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 2. Solids at Nitrogen Iodine Room Bromine Temperature Some Non-metals are solids. Carbon Oxygen
  • 220. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 3. Liquid at Nitrogen Iodine Room Bromine Temperature Bromine is the only liquid Non-metal Carbon Oxygen
  • 221. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 4. Low Boiling Nitrogen Iodine Point Bromine Most Non-metals boil at a low temperature. Carbon Oxygen
  • 222. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 5. Dull Nitrogen Iodine Most Bromine Non-metals are dull not shiny. Carbon Oxygen
  • 223. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 6. Brittle Nitrogen Most Iodine Non-metals Bromine will break if you hammer or pull them. Carbon Oxygen
  • 224. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 7. PoorNitrogen Iodine Bromine Conductors Non-metals do notCarbon conduct heat Oxygen or electricity.
  • 225. How What are the general types of elements in arranged intable? are electrons, protons and neutrons the periodic the atom? Metalloids MetalloidsBoron (B)Silicon (Si)Germanium (Ge)Arsenic (As)Antimony (Sb)Tellurium (Te)Astatine (At)
  • 226. How are electrons, protons and neutrons Metalloids? the atom? What are the characteristics of arranged inMetalloids have some of the properties of metals and nonmetals. Metalloids 1. Properties of Metals and Non Metals Boron Antimony Metalloids have some of the properties of metals and nonmetals Silicon
  • 227. How are electrons, protons and neutrons Metalloids? the atom? What are the characteristics of arranged inThey are semiconductors. 2. Semiconductors Metalloids conduct electricity at different Boron Antimony temperatures and exposures to light. Silicon Metalloids
  • 228. CST Review Questions29 (metalloids)
  • 229. CST Review Questions29 (metalloids)
  • 230. CST Review Questions30
  • 231. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 8. Low Melting Nitrogen Iodine Temperatures Bromine Non-metals melt at low temperatures. Carbon Oxygen
  • 232. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 8. High Melting Temperature Silver Metals have high melting temperatures. Platinum Gold Metals Copper
  • 233. How are electrons, the characteristics of Non-metals?the atom? What are protons and neutrons arranged inA. Some of the physical characteristics of non-metals are: Non-metals 7. PoorNitrogen Iodine Bromine Conductors Non-metals do notCarbon conduct heat Oxygen or electricity.
  • 234. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 5. Conduct Heat Silver Metals conduct heat. Platinum Gold Metals Copper
  • 235. How are electrons, protons and neutronsof metals?in the atom? What are the characteristics arrangedA. Some of the physical properties of metals are: 6. Conduct Electricity Silver Metals conduct electricity. Platinum Gold Metals Copper
  • 236. CST Review Questions30
  • 237. CST Review Questions30
  • 238. CST Review Atoms and Atomic Structure
  • 239. Brain Pop BrainPop Atoms
  • 240. Brain Pop BrainPop Atomic Model
  • 241. Atomic Structure Foldableproton - neutron Study + + nucleus - Electron Cloud electron
  • 242. CST Review Questions10. What is the reference point? 21
  • 243. How are electrons, protons and neutrons arranged in the atom?A. Protons and neutrons are in the center of the atom. protons neutrons Bohr Atom
  • 244. How are electrons, protons and neutrons arranged in the atom?1. The center of the atom is called the nucleus. nucleus protons neutrons Bohr Atom
  • 245. How are electrons, protons and neutrons arranged in the atom?B. Electrons swirl around the nucleus at high speeds, forming a cloud. electrons Bohr Atom Electron Cloud
  • 246. How are electrons, protons and neutrons arranged in the atom?Copy This Diagram in Your Notes. electrons protons neutrons nucleus
  • 247. CST Review Questions10. What is the reference point? 21
  • 248. CST Review Questions10. What is the reference point? 21
  • 249. CST Review Questions20
  • 250. CST Review Questions20
  • 251. CST Review Questions20
  • 252. CST Review Isotopes
  • 253. Brain Pop BrainPop Isotopes
  • 254. Isotope Graphic Organizer Page 62 Study
  • 255. CST Review Questions1728
  • 256. How are isotopes written?X. Isotope names contain the name of the element and the mass number of the isotope. Carbon-13 element mass number Isotope name
  • 257. How many neutrons do atoms have?IX. Forms of an element with different numbers of neutrons are called isotopes. Carbon-12 Carbon-13 Carbon-14 6 protons 6 protons 6 protons 6 neutrons 7 neutrons 8 neutrons protons 12 total 13 total 14 total neutrons 3 isotopes of carbon
  • 258. How many neutrons do atoms have?A. Isotopes are named by the element’s name and mass number (the number of protons + neutrons.) Carbon-12 Carbon-13 Carbon-14 6 protons 6 protons 6 protons 6 neutrons 7 neutrons 8 neutrons 12 total 13 total 14 total isotopes of carbon
  • 259. CST Review Questions28
  • 260. CST Review Questions28
  • 261. CST Review Compounds and Chemical Reactions
  • 262. Brain Pop BrainPop Chemical Equations
  • 263. Brain Pop BrainPop Compounds and Mixtures
  • 264. Interactive Notebook Cornell Notes Page 34 Study
  • 265. CST Review Questions24
  • 266. What are chemical formulas?Chemical formulas tell you the elements in a compound. ammonia NH3 molecule nitrogen hydrogen atom atom
  • 267. What are chemical formulas?Chemical formulas tell you the elements in a compound. ammonia NH3 molecule nitrogen hydrogen atom atom
  • 268. CST Review Questions24
  • 269. CST Review Questions24
  • 270. CST Review Questions24
  • 271. CST Review Questions25
  • 272. CST Review Questions25
  • 273. CST Review Questions25
  • 274. CST Review Questions38
  • 275. How is mass conserved?D. However in a chemical reaction the mass of the reactants ALWAYS equals the mass of the products. + sodium chlorine salt 13 g Na + 12 g Cl 25 g NaCl
  • 276. How are atoms conserved?A. The atoms going into the reaction are always same as the atoms coming out in the products. 2H 2O H2O22 hydrogen 2 oxygen 1 peroxide atoms atoms molecule H H O O O H O H
  • 277. Chemical ReactionsThe number of atoms of each element is the same on both sides of a chemical reaction. 2H S 4O H2SO42 hydrogen 1 sulfur 4 oxygen 1 sulfuric atoms atom atoms acid molecule + + =
  • 278. CST Review Questions38
  • 279. CST Review Questions38
  • 280. CST Review Questions39
  • 281. What happens to energy in a chemical reaction?VI. Energy can be released or absorbed when matter changes.
  • 282. What happens to energy in a chemical reaction?A. When heat energy is absorbed it is called endothermic. (Gets cold)
  • 283. What happens to energy in a chemical reaction?B. When heat energy is released it is called exothermic. (Gets hot) Burning + = wood carbon
  • 284. CST Review Questions39
  • 285. CST Review Questions39
  • 286. CST Review Questions22
  • 287. How are elements and compounds different?III. The properties of compounds are always different from the properties of the elements that formed them . + = Hydrogen Oxygen Water (gas) (gas) (liquid) element element compound
  • 288. What are compounds?1. Hydrogen is an explosive gas. Hydrogen +
  • 289. What are compounds?2. Oxygen is a gas which burns. Hydrogen Oxygen +
  • 290. What are compounds?3. They form water which is a freezing liquid. Hydrogen water +
  • 291. What are compounds?3. The properties of water are nothing like the properties of hydrogen and oxygen. + = Hydrogen Water Oxygen explodes freezes burns
  • 292. CST Review Questions22
  • 293. CST Review Questions22
  • 294. CST Review Questions37
  • 295. CST Review Questions37
  • 296. CST Review Density
  • 297. Page 72 tu dyS
  • 298. CST Review Questions
  • 299. How is density calculated?IV. Density can be calculated using the following formula: Density = Mass Volume Density = g mL
  • 300. What is speed?The density equation can be rewritten to solve different types of density problems. Density = Mass Volume
  • 301. Density FormulaYou can rewrite the Density Formula Mass Density Volume
  • 302. CST Review Questions
  • 303. CST Review Questions
  • 304. What is speed?The density equation can be rewritten to solve different types of density problems. Density = Mass Volume
  • 305. Density FormulaYou can rewrite the Density Formula Mass Density Volume
  • 306. CST Review Questions5
  • 307. CST Review Questions5
  • 308. Density FormulaYou can rewrite the Density Formula Mass Density Volume
  • 309. Density FormulaYou can rewrite the Density Formula Mass Density Volume
  • 310. CST Review Questions5 Mass = Density X Volume
  • 311. CST Review Questions5 Mass = Density X Volume Brick MassA = ? Brick MassB = ? Air MassC = ? Air MassD = ?
  • 312. CST Review Questions5 Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = ? Air MassC = ? Air MassD = ?
  • 313. CST Review Questions5 Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = ? Air MassD = ?
  • 314. CST Review Questions5 Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = ?
  • 315. CST Review Questions5 Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = 1 X 10000 = 10000
  • 316. CST Review Questions5 Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = 1 X 10000 = 10000
  • 317. CST Review Questions5 Mass = Density X Volume Brick MassA = 2000 X 2 = 4000 Brick MassB = 2000 X 4 = 8000 Air MassC = 1 X 6000 = 6000 Air MassD = 1 X 10000 = 10000
  • 318. CST Review Questions31
  • 319. Why is density important?V. Density determines what things will sink and float in a given liquid.
  • 320. CST Review Questions31
  • 321. CST Review Questions31
  • 322. CST Review Questions19
  • 323. Why is density important?A. If an object has LESS density than the liquid it will FLOAT. density of ball = less than water The ball has LESS density than water.
  • 324. Why is density important?B. If an object has MORE density than the liquid it will SINK. The ball has MORE density than water. density of ball = more than water
  • 325. CST Review Questions19
  • 326. CST Review Questions19 Less
  • 327. CST Review Questions19 Less Less
  • 328. CST Review Questions19 Less Less Less
  • 329. CST Review Questions19 Less Less Less More
  • 330. CST Review Questions19 Less Less Less More
  • 331. CST Review Questions18
  • 332. CST Review Questions18
  • 333. CST Review Questions18
  • 334. Consider This Buoyant Forces
  • 335. What are buoyant forces?XI. Buoyancy is the force of a liquid pushing up on an object. Buoyant Force of water pushes up.
  • 336. What are buoyant forces?A. Buoyant force is equal to gravity when an object floats. Force of Gravity pushes down. Buoyant Force of water pushes up.
  • 337. What are buoyant forces?A. Buoyant force is equal to gravity when an object floats. Force of Gravity pushes down. Buoyant Force of water pushes up.
  • 338. What are buoyant forces?B. When an object is flat, Buoyancy is greater because the liquid pushes up against a larger surface area. Buoyant Forces of liquid push up.
  • 339. CST Review Questions5
  • 340. CST Review Carbon and Life Molecules
  • 341. CST Review
  • 342. Carbon: Chemistry of LifeB. Carbon is important to lifebecause it is able to bond to itselfand form long chains.
  • 343. CST Review
  • 344. CST Review
  • 345. CST Review
  • 346. CST Review
  • 347. Carbon: Chemistry of LifeI. Six elements form most molecules in living things:Phosphorus Please NeverNitrogen Call Her OnCarbon SundayHydrogenOxygenSulfur
  • 348. Carbon: Chemistry of LifeC. Many molecules found in livingthings (like DNA, sugars, fats, andproteins) are LARGE moleculescontaining chains of carbon. glucose DNA saturated fat
  • 349. Carbon: Chemistry of LifeD. Salt (NaCl) and water (H2O) aresmall molecules in living things.
  • 350. Molecules in Living Things Thinking Map water salt
  • 351. Hands on Activity Making Molecular Models of Chemical Equations:1. Write the reaction below.2. Using the legend, make a model of this reaction: 6C 12H 6O C6H12O66 carbon 12 hydrogen 6 oxygen 1 glucose atoms atoms atoms sugar molecule + + =
  • 352. Hands on Activity Making Molecular Models of Chemical Equations:6C 12H 6O C6H12O6 H H O H H C O C H CH O C O C C H H O O H glucose
  • 353. CST Review
  • 354. CST Review
  • 355. Notes diamonds Crystalsalt Molecules graphite
  • 356. Crystal Molecules1. Salt crystalshave alternatingatoms of sodiumand chlorine.
  • 357. Crystal Molecules2. The alternatingpattern of sodiumand chlorine atomsgives salt the shapeof cubes.

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