grade 5 2nd tri final science 2

Look at the picture

below.Which of the following is being harvested by the machines in the picture?

• air pollution

• electricity

• fuel oil

• wind

Mr. and Mrs. Hernandez are building a new house in the desert. They want to generate heat for the house with renewable energy. Which resource should they use?

• coal

• fuel oil

• natural gas

• solar power

Goods sold at a farmers’ market travel only short distances between the place where they are produced and the place where they are sold. How might this save natural resources?

• The goods are mass produced.

• The goods remain renewable.

• The goods are brought to market using less fossil fuel.

• The goods can more easily be exported.

Look at the picture of an oil

refinery.Which statement best describes what is happening in the picture?

• A renewable resource is being refined into oil.

• Gasoline is being refined into electricity.

• A natural resource is being renewed.

• Oil is being refined into gasoline.

Mr. Sikorsky lives and works in Washington, D.C. If he wants to conserve as much fossil fuel as possible, how should he travel to and from to work each day?

• by bicycle

• by bus

• by car

• by subway

Reina wishes to reduce the amount of waste she makes so that less of it ends up buried in landfills or burned in incinerators. If she mops up messes using washable rags rather than paper towels, what natural resource would she help to conserve?

• water

• trees

• soil

• oil

Soil contains nutrients that plants need to grow. Most of our food comes from crops that grow in soil. Which farming technique helps to renew the soil’s supply of nutrients?

• contour plowing

• crop rotation

• hydroponics

• intercropping

Scientists have estimated that the average person in the United States uses about 380 L (about 100 gal) of water every day. Which of the following would be the best way for the Richards family to conserve water each day?

• move to a wetter climate

• serve milk instead of water with meals

• run their clothes washer only when it is full

• allow faucets to drip slowly so that the pipes do not break

Dorothy knows that the best way to conserve fossil fuel is to use less energy. She now uses several devices that contain energy-efficient LED light bulbs. Which type of energy conservation is Dorothy following?

• recycling

• reducing

• renewing

• reusing

Using recycled materials to make new products helps to conserve natural resources. Which natural resource is conserved by recycling newspapers?

• oil

• soil

• trees

• water