5th grade science

Front

Buried remains of ancient plants and animals that we now use as fuel.

Back

fossil fuels

Front

Breaking down earth's materials at or near the surface.

Back

weathering

Front

Why are certain patterns of stars not visible everywhere on Earth all year long?

Back

Earth's revolution

Front

Why do we have night and day?

Back

the rotation of Earth on its axis

Front

When is mechanical energy not involved? Options: a mirror reflects light, a car moves, a windmill spins, a wheel turns

Back

a mirror reflects light

Front

To move an object to the East, from which direction should you push? Options: East, West, South, North

Back

West

Front

A boy pushes a cart across the floor. What is the push most likely to change?

Back

The position of the cart

Front

What do all the objects below have in common? Options: A. They all refract light., B. They all reflect light., C. They are all conductors., D. They all make objects appear smaller.

Back

They all refract light.

Front

Why does the plastic keep electricity from starting a fire?

Back

Plastic is a good insulator.

Front

Erosion: Which of these best describes the process of erosion?

Back

Pieces of rock or soil are carried from one place to another.