Across
- 4. An area that absorbs more carbon than it emits. Ex: forest, because the trees absorb more carbon than they emit.
- 5. One of Earth's vital signs; the level of the surface of the sea.
- 9. The natural process by which the atmosphere traps some of the Sun's energy, warming the Earth enough to support life.
- 10. The movement of carbon from the nonliving environment into living things and back.
- 12. A period of colder global temperatures that features recurring glacial expansion across the Earth's surface (ice age)
- 14. The average temperature of Earth.
- 16. One of Earth's vital signs; a permanent layer of ice covering an extensive tract of land, especially a polar region.
- 18. Any natural resource that can replenish itself in a relatively short period of time, usually no longer than the length of a human life.
- 19. The condition of Earth's atmosphere at a particular time and place.
- 22. A gas that currently contributes the most to climate change; most living things exhale/breathe out this gas, also produced by the burning of fossil fuels.(CO2)
- 23. One of Earth's vital signs; a measurement of the area of ocean where there is at least some sea ice.
- 24. A period of the year characterized by particular conditions of weather, and temperature.
Down
- 1. A natural fuel such as coal or gas formed in the geological past from the remains of living organisms.
- 2. A gas in the atmosphere that contributes to global warming, weather, and climate.
- 3. Natural resources that are not replaced in a useful time frame.
- 6. The production and discharge of something, especially gas or radiation.
- 7. A warmer period between glacial periods
- 8. A fuel made out of things such as crops.
- 11. Overall weather conditions in an area over a long period of time.
- 13. The gradual increase in the overall temperature of the earth's atmosphere, mainly due to gases being emitted making the greenhouse effect trap in more heat.
- 15. The planet on which we live.
- 17. Supplies the energy for the water cycle
- 20. A gas that contributes to the greenhouse effect.
- 21. Greenhouse gas that comes from burning fossil fuels, leaking pipelines, fracking, cows, decomposition of once living things (CH4)
- 22. Changes to the Earth's atmosphere including storms, rainfall and temperature that increase or decrease global temperatures.