2/19 Earth Science class and homework due 2/26

Hi folks,

This week we did quite a few demos to deepen our understanding of air pressure and to understand why hot air rises.

For homework, answer the following questions.

1. Draw and label the 5 layers of the atmosphere.


2. What are three reasons our atmosphere is so important?





3. What are the two major gasses in our atmosphere?




4. Circle the right answer. When something gets hotter its molecules move (faster slower).


5. Circle the right answer. When something gets colder its molecules move (faster slower).



6. Circle the right answer. When something gets hotter its molecules get (closer farther) from one another.



7. Circle the right answer. When something gets colder its molecules get ( closer farther) from one another.



8. Circle the right answer. When something gets hotter it gets (more less) dense.




9. Circle the right answer. When something gets colder it gets (more less) dense.




10. Circle the right answers. Hot air (rises falls) because it is (more less) dense than cold air.




12. Circle the right answers. Cold air (rises falls) because it is (more less) dense than hot air.



13. Explain why the aluminum can got crushed




14. Explain why the balloon got larger in hot water and smaller in cold water.




15. Explain why the balloon went into the jar.