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This document discusses the properties of matter and density. It defines matter as anything that has mass and takes up space. There are four phases or states of matter: solid, liquid, gas, and plasma. Solids have a fixed shape and volume, liquids take the shape of their container, gases have no definite shape or volume, and plasma is made up of charged particles. Density is defined as the amount of matter per unit volume and can be used to identify substances. Density can be calculated by dividing an object's mass by its volume. An object's density determines whether it will float or sink in water.
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Here are the steps to solve the density word problems:
1) 50.0 g / 25 cm3 = 2.0 g/cm3
2) 60 g / 30 cm3 = 2.0 g/cm3
3) 200 g / 150 cm3 = 1.3 g/cm3
4) 10 g / 5 cm3 = 2.0 g/cm3
5) 10,000 g / 500 cm3 = 20 g/cm3
The document discusses physical properties of matter like density, hardness, melting point, etc. and provides examples of how these properties are used to determine suitable materials for different applications. It also contains sample problems calculating density using the formula: Density = Mass
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ALTERNATIVE LEARNING SYSTEM
DISTRICT III
Name:
Level: Date:
Community Learning Center:
32200174 / SURIGAO WEST CENTRAL ELEMENTARY SCHOOL ALS Facilitator:
DANICA M. BAIDIANGO Score:
LEARNING STRAND 2 Scientific Literacy and Critical Thinking Skills
Content Standard: Demonstrate understanding on various biological concepts and their applications
Performance Standard D: Apply biological science concepts in different life situations
Learning Competency:
a. Identify the different sense organs (LS2SC-BC-PSD-LE/AE/JHS-19);
b. Relate the structure of the sense organs to its functions (LS2SC-BC-PSD-LE/AE/JHS-19);
c. Demonstrate healthful habits in taking care of the sense organs (LS2SC-BC-PSD-LE/AE/JHS-21)
d. Describe the causes and symptoms of some diseases associated with the sense organs, e.g. • Eyes: ocerthalmium (night blindness), conjunctivitis, stye, • sore eyes, lesions of the eyes, foreign body • Nose: adenoids, foreign body • Ears: otitis, foreign body • Tongue/mouth: oral thrush (singaw), Herpes simplex • Skin: carbuncle, boils (pigsa), dermatitis and fungal infections
CONTENT: OUR SENSE ORGAN: Lesson 1- The Organs of Sight and Hearing
References: ALS A&E Our Sense Organ.pdf (page 4-17)
A. LET’S SEE WHAT YOU ALREADY KNOW!
I- Multiple Choice. Encircle the correct answer.
1. Our eye is our organ for _______________.
a. smell
b. hearing
c. vision
d. touch
2. A thin layer of tissue that lines your eyelids and nasal cavity is called _____________.
a. lining
b. mucous membrane
c. skin
d. dermis
3. The innermost layer of cell inside your eye is called the _______________.
a. mucous membrane b. conjunctiva c. retina d. choroid
4. The visible part of your ear is called ______________.
a. ear b. auricle c. flaps d. shell
5. You hear sounds through ________________.
a. vibration b. music c. noise d. light
6. The smallest bones of your body are found in your _______________.
a. eyes b. nose c. mouth d. ears
7. Olfaction pertains to your sense of _________________.
a. smell
b. touch
c. sight
d. taste
8. _______________ are groups of cells inside your mouth that detect the taste of the food you eat.
a. tongue b. teeth c. taste buds d. saliva
9. The biggest sense organ of your body is your ___________________.
a. nose b. lips c. skin d. eyes
10. Your sense of touch is also called ______________ sense.
a. olfaction
b. vision
c. balance
d. tactile
II- Write the corresponding sense organ affected by the following disorders or diseases. Write eye, ear, nose, tongue, or skin on the space provided before each number.
_______________ 1. Carbuncle
_______________ 2. Otitis Media
_______________ 3. Rhinitis
_______________ 4. Sty
_______________ 5. Aguesia
B. CONCEPT NOTES
LESSON 1
The Organs of Sight and Hearing
How do our eyes see?
Figure 1.1
Our eye has many parts and each one of them helps you see.
Try blinking one
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This document provides an overview of the kinetic molecular model of matter. It describes the three main states of matter - solids, liquids, and gases - in terms of the arrangement, separation, and motion of molecules. In solids, molecules are close together and vibrate in place, giving solids a definite shape and volume. In liquids, molecules move more freely but have a definite volume and take the shape of their container. In gases, molecules move freely in all directions, causing gases to have no definite shape or volume and fill their container. Matter can change states through processes like melting, freezing, boiling, condensation, and sublimation in response to changes in temperature and energy. The properties of each state relate to
4 ppt states properties
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Matter in our Surroundings || Class 9 || NCERT
To download click the following link to my youtube page
https://youtu.be/eV_AFEhF8p4
Matter in our Surroundings || Class 9 || NCERT || Chemistry
Properties of matter
Matter is anything that takes up space and has mass. It exists in three states: solid, liquid, and gas. Solids have a definite shape and volume as their particles are tightly packed and vibrate in fixed positions. Liquids have an indefinite shape but definite volume as their particles are closely packed but can slide over one another. Gases have an indefinite shape and volume as their particles are very far apart and move freely. Physical properties can be observed without changing the chemical makeup and include color, texture, temperature, mass, volume, shape, size, weight, and ability to flow.
Matter
This document discusses the different types, states, and properties of matter. It defines matter as anything that occupies space and has mass, and describes the two main types of matter as pure substances and mixtures. Pure substances are either elements or compounds, while mixtures can be either homogeneous or heterogeneous. The three normal states of matter are solids, liquids, and gases, which differ in the arrangement and distance between particles. Additional exotic states like plasma and Bose-Einstein condensates are also mentioned. Physical and chemical properties that can be used to characterize different materials are outlined.
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Density notes
- 2. Matter Around You ➔Matter is anything that has mass and takes up space ◆Mass: the amount of matter an object has ● Measured in grams (g) and Kilograms (kg) ● NOT the same as weight!! ➔Everything you can see around you is made up of tiny molecules.
- 3. The Phases of Matter • There are 4 phases that matter can exist in: – Solid, Liquid, Gas & Plasma
- 4. Solids • Have a definite/fixed volume and shape – Not easily compressible – Not very fluid – Internal particles have little free space
- 5. Liquids • Assumes the shape of the part of the container which it occupies. • Liquids have a definite volume. – Some typical measurements gallons, ounces, cups, milliliters (ml), liters (l). – Internal molecules have higher energy and can move around each other easily
- 6. Gases • Gases have neither a definite shape nor a definite volume. • Gases assume the shape and volume of a closed container. – Particles have higher energy than those of a solid or liquid. – They move the fastest and farthest
- 7. Plasma • Plasma is different from a gas, because it is made up of groups of positively and negatively charged particles. – The most common state of matter in the universe, but the least common found on earth. • Ex: The Northern Lights, Fluorescent light bulbs
- 8. Comparison the States of Matter
- 9. Physical Properties of Matter • Substances have specific characteristic properties like: ○ Phases, odor, density, solubility, heat and electrical conductivity, and boiling/freezing points. • These physical properties can be used to help identify certain substances.
- 10. Density • Density is the amount of matter (particles) per unit volume Density=Mass/ Volume (D= M/V ) Mountains Deserts x Valleys ● Density changes with states of matter Densities of Common Elements and Compounds Substance Density grams per mL Pine wood 0.35 -0.50 Water 1.00 Salt, NaCl 2.16 Aluminum, Al 2.70 Iron, Fe 7.80 Gold, Au 19.30 Mercury, Hg 13.5
- 11. Density
- 12. Volume • Volume: the amount of space something takes up
- 13. Density • If two objects have equal volume, but one has more mass, the one with more mass is denser. Which is more dense? The units for expressing density are: g/ml or g/cm3
- 14. How to calculate density • What is the density of a piece of wood that has a mass of 25.0 grams and a volume of 29.4 cm3? ▪ D = M/V ▪ D = 25.0 g/ 29.4 cm3 ▪ D = 0.85 g/cm3 • A piece of wood that measures 3.0 cm by 6.0 cm by 4.0 cm has a mass of 80.0 grams. What is the density of the wood? Would the piece of wood float in water? (volume = L x W x H) • Answer: 1.11 g/cm3
- 15. How to Calculate Density: Water Displacement method • How do you determine the volume of an irregular shaped object? • By measuring the increased height of the water in the graduated cylinder you can find the volume of the object.
- 16. Solving for volume • How much plastic is in a water bottle? • If the density of the plastic is 1.27g/cm3 can you solve for volume? • Volume =mass/ density
- 17. Solving for Mass • How can paleontologists tell how much a dinosaur weighed? • All vertebrates have a density about 1.0 g/cm3 • So get the volume from the fossils and then • Mass= density x volume
- 18. Density of liquids • Water has a density of 1.0 g/cm3 • Objects more dense than water sink in water and objects less dense float in water • This includes other liquids
- 19. What’s heavier a kilogram of steel or a kilogram of feathers?
- 20. Practice Questions: • An ice cube measuring 5.80 cm by 5.80 cm by 5.80 cm has a density of 0.917 g/mL. What is the mass? • A cup of gold colored metal beads was measured to have a mass 425 grams. By water displacement, the volume of the beads was calculated to be 48.0 cm3. Given the following densities, identify the metal. – Gold: 19.3 g/mL Copper: 8.86 g/mL bronze: 9.87 g/mL • The density of aluminum is 2.70 g/mL. If the mass of a piece of aluminum is 244 grams, what is the volume of the aluminum?