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Across 4. All living and non-living things in an area at one time. 5. About 19% of the Sun's energy is absorbed by ______ and gases. 6. About 47% of the Sun's energy is ______ by Earth's surface. 9. _____ also affect the water cycle. 10. A _____ is a pattern that repeats again and again. 12. ____ rain discolors and wears away statues and buildings. (p392) 13. The sun's energy heats surface water causing ______. 15. Natural ______ like earthquakes and volcanoes change the geosphere quickly. 17. An individual living thing in a biosphere. 21. Our food comes from ________ among Earth's systems (p389). 22. Plants release a gas called _______ during photosynthesis. 23. A ________ studies data to try and predict future volcanic eruptions. 25. These organisms use the Sun's energy to make food. 27. An electricity generating station that burns _______ fuels releases smoke into the atmosphere. 29. A ____ particle is 1/1000 the size of a rain drop. 31. Volcanic eruptions can have a major ______ on weather. 32. The fresh water inside the Earth's crust. 34. Places where the Sun's energy strikes Earth straight on are ______. 36. The dry side of a mountain is called a rain ______. 38. When water (in any form) falls to Earth it's called ______. 39. Warm air near the ______ rises. 40. All the populations (organisms) livlng in an area at one time. 41. A lot of fresh water is in ______ (giant sheets of ice that move slowly). 42. Tree ______ can weather (break) rocks. 43. The "Ring of Fire" has so many _______.

Down 1. Organisms in the biosphere are ________ on each other. 2. About 9% of the Sun's energy is ______ by the air. 3. All the individuals of the same species in a biosphere. 4. ______ is when sediment is moved by wind or water. 6. People drill wells to get water from an _______. 7. Volcanic ______ start in the geosphere but can affect all the spheres. 8. ______ eat plants or other organisms to survive. 10. When water vapor rises and encounters cold air, ______ can occur. 11. _____ heats up and cools down moe quickly than water. 14. Sunlight or warm air on the snowy tops of mountains can cause _______ runoff. 16. Glaciers drag rocks along, forming big ______ in Earth's surface. 18. These organisms recycle material from dead organisms, releasing nutrients and organic matter. 19. Ash particles from a volcano can ______ sunlight. 20. Air and water ________ negatively affects all spheres. 24. Water is absorbed by the roots of plants and later released to the atmosphere as water vapor. This is called _____. 26. The process whereby many plants use the Sun's energy to make food. 28. ______ is the breaking down of rocks into smaller pieces. 30. Water flowing over land to the sea is called ____ runoff. 33. About 25% of the Sun's energy is ______ by clouds and Earth's surface. 35. A group of ecosystems with similar climates and communities. 36. Cold air ______. 37. A water ____ is 1/100 the size of a rain drop.