1. Earth and Space Science
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Conservation

2. fossil fuels, trash, smog
Particles of pollutants are released into the air when ______________ or ____________
are burned. This haze in the air over cities, or air pollution is called __________.

3. ozone 2._________________ is a form of oxygen that protects
living things on Earth’s surface from the Sun’s
dangerous radiation.

4. weakened
3. Chemicals in aerosol cans and air conditioners can leak into the atmosphere and weaken the ozone laer. When ozone is ______________, harmful radiation from the Sun reaches Earth’s surface more easily.

5. Water, factories, farms, homes
4. _________ can also be polluted by human activity. Chemicals produced by __________, __________, and ________ can enter a source of water and pollute it.

6. smoke, gases, acid rain
5. In industrial areas, ____________ and ___________ that pour into the air from factories can combine with rain and form ________ ________. Acid rain has many harmful effects. It can kill trees and wear away stone buildings and statues.

7. wildlife habitats
6. Mississippi is a state rich in natural resources. One program, called the Healthy Forests Reserve Program (HFRP) was established to protect _____________ ___________________, and endangered species in Mississippi.

8. gopher frog, longleaf pine
7. This program encourages private landowners to use their land to help protect natural habitats for many species, such as the ________ _________, black pine snake, and the _______ _______.

9. timber industry
8. Since Mississippi has a thriving __________ ___________ , the state conserves trees by growing them on tree farms. Mississippi has more tree farms than any other state.

10. cotton, corn, hay, oats, soybeans
9. Many agrigulctural products are grown in MIssissippi. These include ________, __________, ____________, __________, wheat, rice, and _______________.

11. fish farms, aquaculture
10. Mississippi has one of the largest fishing industries on the Gulf Coast. ___________ __________ have been built to repopulate fish and crustacean populations in a contained environment. This technique is called ___________________.

12. alternative energy, wind, moving water, solar
11. Any source of energy other than fossil fuels is called an _____________ __________ source. These include _______, __________ __________, and _________ energy.

13. wind, windmills
12. ____________ is air that is moving. The energy in wind can be used to make electricity. Electricity is produced when the blades of a _____________ turn. Wind energy does not pollute the air we breathe, but it can only be used in places where wind blows almost all of the time.

14. water, hydroelectric, water
13. ____________ running through streams and rivers has energy. A ____________________ plant is one that uses water to produce electricity. The prefix hydro- means __________.

15. solar energy
14. Energy from the Sun is called ____________ ___________ which is a renewable resource that will last as long as the Sun shines.

16. geothermal, nuclear
15. ___________________energy and _____________ energy are alternative energy sources.

17. geothermal 16.Heat produced inside Earth, or _____________________
causes volcanoes and hot springs. These heat energy sources can be used to heat water and give heat energy to homes.

18. nuclear energy
17. _________________ energy is stored in the nucleus of an atom. Nuclear energy is less expensive than fossil fuels, but can be very dangerous if not handled properly.

19. reduce, reuse, recycle
18. One of the ways that individuals can help conserve Earth’s
natural resources is by following the 3 Rs of conservation:
___________, _____________, and _____________.

20. recycle 19. When you __________________, you save and take reusable
materials to places where they can be made into something new.

21. reducing 20. By ________________ the amount of products we make and
use, we help conserve natural resources.

22. reusing
21. _________________ items also decreases the buildup of trash in landfills and other garbage disposal sites.

23. leaving the water on while brushing your teeth.
All of the following are ways to conserve natural
resources EXCEPT
taking a short shower.
running the dishwasher only when full.
leaving the water on while brushing your teeth.

24. Wind, solar energy, moving water
Which list contains ONLY alternative energy
sources?
Wind, solar energy, moving water
Oil, coal, natural gas
Nuclear energy, fossil fuels, geothermal energy