hard science

Something that takes up space and has mass.

• volume
• matter
• mass
• density

A state of matter that has a definite volume and shape.

• solid
• liquid
• gas
• matter

Most young animals inherit similar appearances, such as shape and color, from their parent animals. Which best describes why a baby deer (fawn) has spots when the adult deer do not?

• The spots help camouflage the fawn for protection.
• The spots help a fawn to be seen when crossing roads.
• The adult deer lose their spots by rubbing against trees.

What characteristic is inherited by only some members of its species?

• gills on a fish
• wings on a bird
• spots on a horse
• trunk on an elephant

What is Magma when it reaches the surface of Earth?

• Lava
• Mafic Magma
• Felsic Magma
• None of these

Why does a compass needle point north?

• The compass is a bar magnet
• Because north is up
• Because it's magic
• It lines up with the Earth's magnetic field

True or False: All metals stick to magnets.

• True
• False

____________ allows electricity to flow.

• A conductor
• An insulator
• A magnet

What kind of circuit is this?

• Series
• Parallel

A deep valley with steep walls that cut into the earth caused by erosion from running water.

• Valley
• Canyon
• Gulf
• River