Science-----Chapter 5 lesson 4- Conservation Test Friday, January 22, 2016
Vocabulary
1.
Alternative Energy Source- a source of energy other than the burning of a fossil fuel.
2.
Ozone- a form of oxygen that makes a layer in the atmosphere that screens out much of the sun’s dangerous radiation.
3.
Recycle- to make new objects or materials from old objects or materials.
4.
Smog- a type of air pollution formed by particles produced by burning fossil fuels.
Notes
1.
Smog is air pollution that is caused by the burning of fossil fuels.
2.
Ozone is a form of oxygen that protects living things on Earth’s surface from the sun’s dangerous radiation.
3.
When ozone is destroyed, harmful radiation from the sun reaches Earth surface more easily.
4.
Evidence suggests that radiation can increase the chances of getting skin cancer.
5.
An ozone hole is a thin area in the ozone layer.
6.
Today, the chemicals that destroy ozone are no longer used in aerosol cans. Air conditioners that do not use these chemicals are also made.
7.
Water can also be polluted by human activity.
8.
Chemicals used and produced by factories, farms, and homes can enter the environment. If these chemicals reach a source of water, they can pollute it.
9.
In industrial areas, smoke and gases that pour into the air from factories can combine with rain to form acid rain.
10.Acid rain can kill trees and wear away stone buildings and statues.
11. Mississippi is a state rich in natural resources.
12. One program, called the Healthy Forests Reserve Program (HFRP) was established to protect wildlife habitats and endangered species in Mississippi.
13. Since Mississippi has a thriving timber industry, the state conserves its trees by growing them on tree farms.
14. Mississippi has more tree farms than any other state.
15. Many agricultural products are grown in Mississippi. These include cotton, corn, hay, oats, wheat, rice, and soybeans.
16. A company located in Greenwood, Mississippi is developing ways to convert many agricultural products into environmentally friendly products.

17. Crops are also being used to develop alternative energy resources, such as ethanol made from corn and bio-diesel manufactured from soybeans.
18. Wetlands in Mississippi provide habitats for many different organisms.
19. The WRP(Wetlands Reserve Program)was created to restore and protect our nation’s wetlands.
20. Mississippi has one of the largest fishing industries on the Gulf Coast.
21. One way Mississippi conserves the number of fish in its water’s ecosystem is by farming fish. Fish farms have been built to repopulate fish and crustacean populations in a contained environment. This technique is called aquaculture.
22. Any source of energy other than fossil fuels is called an alternative energy source. These include wind, moving, water, and solar energy or energy from the sun.
23. Wind is air that is moving. The energy in wind can be used to make electricity.
24. Windmills are used to produce electricity in several states including California, Hawaii, and
New York. Other countries, such as Denmark, Germany, and India also use energy from the wind.
25. Wind energy does not pollute the air we breathe.
26. Some people are concerned that windmills, might interfere with the habitats of migrating birds.
27. Water running through streams and rivers has energy.
28. Waterwheels use energy from moving water to do work.
29. The prefix hydro- means “water”.
30. Hydroelectric plant is one that uses water to produce electricity.
31. Energy from the sun is called solar energy.
32. Solar energy is a renewable resource that will last as long as the sun shines.
33. Some other sources of alternative energy are heat from inside the earth, energy in the nucleus of atoms, plant and animal materials that are used as fuel.
34. Geothermal energy is heat produced inside earth . This heat causes volcanoes and hot springs.
35. The 3 R’s of conservation are reduce, reuse, and recycle.