Grade 5-Topic 5 Human Impacts on Earth's Systems

Which is the best explanation for how renewable resources differ from nonrenewable resources?

• Renewable resources are found in nature. Nonrenewable resources are made by humans.

• Nonrenewable resources can be replaced as quickly as people use them. Renewable resources are not made fast enough to replace what is used.

• Renewable resources can be replaced as quickly as people use them. Nonrenewable resources are not made fast enough to replace what is used.

• Nonrenewable resources are found in nature. Renewable resources are made by humans.

Dana wants her school to be more environmentally aware. She observes a couple of classrooms two hours each day for a week. The list below shows Dana’s observations.

Which recommendation should Dana suggest to the school that would best help to conserve energy?

Lights are left on after class.

Blinds are open.

Heaters are on.

Windows are open.

Computers are on with no students in the classrooms.

Students use the outlets to charge their cell phones.

• Make sure the blinds and windows are open.

• Keep the lights and computers off during class unless they are needed.

• Keep the windows closed if the heater or air conditioner is on.

Which of the three R's (reuse, reduce, recycle) is being described?

Using cloth grocery bags instead of using plastic bags.

Which one of the three R's comes first?

• reduce

• reuse

• recycle

One of the main renewable resources forests provide us with is…..

•  trees/lumber.

• coal.

• water.

• natural gas.

A   ______________________ is a resource that is replenished at a slower rate than it is used.

• renewable resource

• nonrenewable resource

• resource

• natural resource

Which of the following is not a fossil fuel?

• coal

• natural gas

• geothermal energy

• petroleum

____________ is the practice of protecting the environment and using resources carefully.

• Conservation

• Nonrenewable resource

• Renewable resource

• Natural resources

Using ceramic plates instead of paper plates and using cloth grocery bags instead of paper or plastic bags are both examples of _________________________.

• reusing

• recycling

• reducing

Payton is an engineer. She is working on a project to build a dam that produces hydroelectricity.

Complete the sentence about the impact of dams on the environment.

A positive impact of a dam is that it generates electricity without the pollution associated with burning fossil fuels. A __________________ impact is that the dam blocks the natural flow of water and alters the environment for plants and animals.

• positive

• negative