Science Review 3rd

Front

What is a compound machine?

Back

A machine made up of two or more simple machines.

Front

What safety equipment should you wear during experiments?

Back

Goggles.

Front

What force pulls objects towards the Earth?

Back

Gravity.

Front

What gives off thermal energy when cooking on a grill?

Back

The coals and the flames.

Front

How does a stapler change position when it staples papers?

Back

By pushing.

Front

What is a simple machine?

Back

A device that makes work easier, like a lever or pulley.

Front

What is thermal energy?

Back

The energy that comes from heat.

Front

What is the purpose of goggles in a science experiment?

Back

To protect your eyes.

Front

What happens to a ball when you throw it up?

Back

It goes up until gravity pulls it back down.

Front

What is an example of a simple machine?

Back

A lever.