MSTEP Science Review #1

Front

Which planet is known as the Red Planet?

Back

Mars

Front

Why does a piece of cold butter soften when it comes in contact with warm toast?

Back

The thermal energy of the toast decreases and the thermal energy of the butter increases.

Front

Sound travels fastest through which medium?

Back

solid

Front

Four items are placed the same distance from the magnet. Which one of the objects will be the easiest for the magnet to pull? Options: a 1 gram piece of paper—not magnetic, a 2 gram eraser—not magnetic, a 3 gram steel paper clip—lightest object that is magnetic, a 4 gram iron nail—magnetic

Back

a 3 gram steel paper clip—lightest object that is magnetic

Front

Mass

Back

the amount of matter in an object

Front

Which of the following represents a chemical reaction? After a chemical change, new substances are formed with new properties. Options: sugar dissolving in water, ice cubes forming in a freezer, melting ice cream, frying an egg

Back

frying an egg

Front

What controls the pitch of sound?

Back

The number of the vibrations produced.

Front

Which example best models the behavior of light when it reaches the surface of a mirror?

Back

A ball is thrown at a wall and bounces away from the surface.

Front

In an experiment sand and salt are mixed together. Which of these procedures could be used to easily separate the salt from the sand?

Back

Stir the mixture into a glass of water, pour the mixture through a filter, evaporate the water

Front

Why is the car not moving even though a force is being exerted on it?

Back

A force in the opposite direction balanced the push.