4th Grade NC Science Review A

Front

A metal ball has an electrical charge. What will happen when it is brought near another metal ball with the same electrical charge?

Back

The two balls will be pushed away from each other.

Front

A geologist wants to test the streak of a mineral. What should the geologist do? Options: rub the mineral along a ceramic plate, view the mineral under bright lights, place salt on top of the mineral, use fire to melt the mineral

Back

rub the mineral along a ceramic plate

Front

This is a waxing moon. What causes the moon to appear this way?

Back

Light from the sun is being reflected on part of the moon.

Front

Which can a scientist learn from studying a plant fossil?

Back

how long ago the plant lived

Front

Which is an example of a slow change to Earth’s surface? A well collects rainwater. A boat travels toward the shore. A tree branch falls to the ground. A river carries sediment to the ocean.

Back

A river carries sediment to the ocean.

Front

How could the removal of trees and plants near a meadow to build a shopping center affect the bluebird population? Options: A It could give the bluebird population more space to live., B It could force the bluebird population to find a new place to live., C It could cause all of the bluebird population in the area to die., D It could provide a larger selection of food for the bluebird population.

Back

It could force the bluebird population to find a new place to live.

Front

The water level in a lake is decreasing. How could this affect the plants and animals living in the lake?

Back

It might reduce the amount of space for the plants and animals.

Front

Which will most likely occur during winter in the United States? Snakes will build nests in other places., Birds will migrate to the north., Frogs will search for a mate., Bats will hibernate in caves.

Back

Bats will hibernate in caves.

Front

A grasshopper eats a blade of grass. What is grass?

Back

It is food because it provides energy.

Front

What is the source of energy animals need to survive? Options: minerals, water, food, air

Back

food