Across
- 3. - Everything on Earth can be placed into one of four major subsystems: land, water, living things, and air. These four subsystems are called "spheres." Specifically, they are the "geosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).
- 5. - a change in Earth's overall climate. This could be a change in Earth's average temperature, for example. Or it could be a change in Earth's typical precipitation patterns.
- 8. - All the rock, soil and sediments that makeup Earth’s land. It comes from the word “Geo” which means “Earth.”
- 10. - All the living things on Earth. It comes from the word “Bio” which means “life.”
- 11. - an annual event that raises public awareness of the importance of protecting the environment celebrated on April 22
Down
- 1. - All the gases surrounding the earth. It comes from the word “Atmos” which means “air.”
- 2. - A solid form of carbon dioxide that is very cold and turns directly from a solid to a gas.
- 4. - To reuse something that would have otherwise been thrown out or to turn it into something usable again instead of sending it to a landfill.
- 6. - All the oceans, rivers, lakes and water on Earth. It comes from the word “Hydro” which means “water.”
- 7. - Naturally occurring rocks that look like a mushroom. They can be formed when sand gets carried by wind and hits the rock. This weathers the bottom of the rock more than the top.
- 9. - After pieces of the earth are broken down through weathering, those pieces are moved through Erosion. Erosion is the process of moving things from one place to another.