Across
- 5. the rise and fall of sea levels related to the moon and the sun
- 7. the layer of atmosphere closest to the earth
- 8. the air that surrounds the earth that has five layers
- 11. a flow resource that all life on needs to survive
- 13. the outermost layer of the earth’s atmosphere
- 14. pollution from cars or factories that end up in the atmosphere
- 15. these are built to control the flow of water and create electricity
- 18. the trapping of warm air in the atmosphere causing the earth to heat up
- 20. a flow resource that helps heat the earth
- 24. a gas that makes up a large part of the sun
- 25. plants turning sunlight and water into energy
- 26. trains or buses people can use to reduce the number of cars on the roads
- 27. a flow resource that can help create energy using air
Down
- 1. chemicals or particles released into the air by homes cars or businesses
- 2. a dam built to use tides to create electricity
- 3. rules or laws put in place to protect the environment
- 4. pipes that carry fresh water to all of the homes in a city or community
- 5. the forms and features of the land’s surface
- 6. the layer of ozone gas in the atmosphere
- 9. machines that turns rotational energy into electricity
- 10. poor areas of cities with little access to clean water and safe housing
- 11. the amount of freshwater used by individuals communities or businesses
- 12. the distance above sea level that a particular place is
- 16. using water to water crops when there is not enough rainfall
- 17. using less resources to ensure there will be some for future generations
- 19. the layer of the atmosphere that protects us from the sun’s UV rays
- 21. flow resources that are shared by all people like water sunlight and wind
- 22. underground layers of rock that can hold fresh water
- 23. a device that turns the sun’s light into energy
- 28. lack of rain to grow crops or to provide water for people or livestock
