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Name _______________________________________________________ Period ____________________________ Intro test #3 Study sheet (Use the back for more room.) 1. Draw a picture of the Earth with the three main layers labeled. 2. Which sphere are the following parts of? You can use the first letter of each sphere. _____ Antarctica _____ wetlands _____ the air that a hawk breathes _____ bird _____ endangered species _____ crust _____ quartz _____ lakes _____ ice sheet _____mantle _____ wind _____ ocean currents _____ snow _____ rain _____ trees _____ you _____ mountains _____nitrogen and oxygen gas 3. Which branch(es) of Earth Science are each of these studied in? You can use the first initial of each branch. Some will have two answers. _____ sunspots _____ weather _____ atmosphere _____ mountains on Mars _____ minerals _____ ocean currents _____ wind _____ human interaction with biomes _____ water pollution _____ tornadoes _____ earthquakes _____ ozone layer _____ motion of planets _____ seasons 4. Give an example of two spheres interacting. 5. Define heat, thermal energy and temperature. 6. Which of these show chemical properties/changes or physical properties/changes? Use the first initial. _____ size change _____ shape change _____ melting _____ burning _____ boiling _____ phase change _____ temperature change only _____ creating a new gas _____ fizzing _____ odor change _____ mass change 7. Give an example of an endothermic and an exothermic reaction. 8. Draw a pie chart describing the % of land, saltwater and fresh water. 9. Define a polar molecule, cohesion, and adhesion. 10. Describe how polarity determines cohesion. 11. Give an example of adhesion. How is it different from cohesion? 12. Describe the difference between gaseous state, liquid state and solid state. 13. Draw a picture of a polar water molecule. Include the + and – charges. 14. Why do icebergs float?