Monday 22, 2008: Make a testable question and draw a data table (Pick one of the hypothesis to do for each.
<ul><li>How does cold ketchup effect the ability to flow, will it be faster or slower? </li></ul>Ketchup Temp. Trial 1 Trial 2 Trial 3 Average Room Cold Warm
<ul><li>Wednesday is Sci-Fi Science from 3:00 to 5:00 </li></ul><ul><li>15 points extra credit </li></ul><ul><li>Movie “Batteries aren’t Included” </li></ul><ul><li>Science Safari: October 11 th </li></ul><ul><li>Branson Dinosaur and Haunted House Museum </li></ul><ul><li>October 11 th 9:00 - ????? Adults: $7.00 Students $5.00 </li></ul><ul><li>Haunted House and additional $5.00 </li></ul>
Atom Bonding: Atoms want to be “ HAPPY ” AS I HAVE STATED! The idea behind this is Atomic shells want to be full. Some atoms have too many electrons and some want to give up atoms. EX: Sodium Magnesium 11 total electrons 12 total electrons 2 filled shells 2 filled shells 1 extra electron 2 extra electrons REMEMBER: Atoms want to have a full shell; to be HAPPY. Sodium and Magnesium have a couple of extra electrons. The way chemistry works is, it is easier to give up extra electrons. There are atoms that want extra electrons. Look at Oxygen and Fluorine: Oxygen: Fluorine: 8 total electrons 9 total electrons 1 full shell 1 full shell To be happy it wants 2 more 1 missing electron # Think about water = H2O Each want a full shell of eight:
They can share and make a Covalent Bond or make an Ionic Bond. Now for An example: Sodium has an extra electron; Fluorine wants one!!!! So Sodium gives one to Fluorine and then “ EVERYONE IS HAPPY” IONS: A normal atom is called neutral. This is when an atom has a number of electrons that is equal to it’s atomic number. Example: A Sodium atom equals 11 electrons it has 1 too many, so it finds an atom that needs one; so it can give it up to. Clorine can take the extra electron from Sodium “ YOUR HAPPY” You’re an Ion – missing an electron You’re a Sodium ion Now you have 10 electrons; but Neon has 10 electrons YOU ARE NOT NEON!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! You’ve become an ion Your not attractive electrically , but other charged ions see you as a good partner!!!! A lot like dating!
You need to remember Atoms can share an electron or they can give up An electron. COVALENT: MEANS SHARE ELECTRONS IONIC : MEANS ELECTRONS ARE GIVEN UP!
Tuesday September 23 rd , 2008 Make a testable question and a data table for this hypothesis.
How does the amount of water effect the time it takes to freeze? Amount of Water Trial 1 Trial 2 Trial 3 Average 1 cup 2 cups 3 cups
<ul><li>How does changing the temperature of the water affect the amount of fish? </li></ul>Wednesday 24, 2008 Make a data table that correlates to this hypothesis: TOMORROW
Temperature of Water Trial 1 Trial 2 Trial 3 Average Cold Room Warm
Make a testable question for the hypothesis: Yes, bring your book to read!!!!!!!
Friday September 26, 2008 Write a testable question for one of the hypothses:
<ul><li>1 st Section: Science Starters </li></ul><ul><li>Week September 2 – 5 th </li></ul><ul><li>Week September 8 th – 12 th </li></ul><ul><li>Week Sept. 15 th – 19 </li></ul><ul><li>Week Sept. 22 - 26 </li></ul><ul><li>2 nd Section: Notes </li></ul><ul><li>Inquiry Notes (worksheet) </li></ul><ul><li>Notes on Scientific Method </li></ul><ul><li>Chemistry Notes (periodic table) </li></ul><ul><li>Chemistry Vocabulary </li></ul><ul><li>Chemistry Notes on Atoms </li></ul><ul><li>Worksheet on Atoms and Elements (Notes) </li></ul>