do now: is a bubble a solid, liquid, or a gas, or something else? what is it? homework: read pages...
TRANSCRIPT
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DO NOW: Is a bubble a solid, liquid, or a gas, or something else? What is it?
HOMEWORK: Read pages 101- 103; Answers to questions # 1- 7 on page 103 are due tomorrow. Full sentences, neatly and properly written, are required for full credit.
AIM: TLW Understand and discuss the need for and the history of the development of the concept of the atom.
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ummmm.... this room is way too loud! please finish your do now
fast- because I’M READY TO DO
SOME SCIENCE. Thanks.
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1. Silently complete the Do Now. Copy your homework.
2. Discuss the Do Now: WHAT IS A BUBBLE?3. Discuss class topic flow: phase changes and
molecules atoms, molecules, elements, Periodic Table, electrons, bonding... YAY!!!
4. Review Lesson Steps.5. Discuss yesterday’s mini lab and other
makeup work...6. Safety contract is due.7. Look over HOMEWORK Pg. 103 #1-7 due
tomorrow.
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WHAT DO YOU – YOU- YOU NEED TO FINISH FOR CREDIT?
TELL ME... YESTERDAY’S MINI-LAB? THE CHAPTER 13 READING WORKSHEET? WHAT IS THE BEST USE OF YOUR- YOUR-
YOUR TIME RIGHT NOW? I’D ASK BUT... MY VOICE IS NOT GOOD....
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(student answers to the Do Now Question) liquid liquid and a gas because the air inside the
bubble is like helium but it’s not, it’s carbon dioxide- it’s like a balloon
gas liquid a liquid gas because it floats a combination a liquid gas- not helium, but--
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Discuss class topic flow: phase changes and molecules atoms, molecules, elements, Periodic Table, electrons, bonding... YAY!!!
SO FAR: SCIENTIFIC METHOD PHASES: SOLID LIQUID GAS KINETIC ENERGY: BEHAVIOR OF MOLECULES
BASED ON TEMPERATURE AND PRESSURE. COMING SOON:
ATOMS
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A bubble is made from liquid soap... or soap with glycerin... or air in water... or bubble gum...
The molecules are so tightly attracted to each other that they are bound into a complete spherical shape.
Why not a cube?
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student answers... because it’s not square because the molecules are round because the molecules are tight and they
form a sphere shape because a cube is a solid... why not a hollow cube?
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balloons are made of latex to make a square or a corner- shaped
edge... either two or more latex balloons are joined, OR the latex is made very thick in those areas and shaped.
What is different about soap bubbles? Not usually thicker in one spot- BUT
Where 2 bubbles join- the soap doesn’t bend in a circle...it’s a flat plane.
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We’ve talked about solids- liquids- gases Bubbles are interesting combos of liquid
and gas (imho) NOW we need to transition into the topic
of atoms Atoms are small complete structures I figure they are easy to visualize as
bubbles mostly empty space the outside layer is the most important
when understanding the behavior...
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question- What happens to a straight pin in a candle flame?
hypothesis materials ; two needles,one tweezer,one
candle,one lighter . procedure ; hold one pin in the flame with
the tweezer & observe and compare data ; record your observations conclusion ; was your hypothesis
correct?
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we have 25 more minutes. you need to write your own hypothesis. and
give a reason for it. I can help you with that! only if the room is
quiet. you need to make observations and record
them. You need to judge whether or not your
hypothesis was correct. This is your conclusion. I can help you- if the room is quiet.
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