Physical Science

Which statement about stars other than the Sun is correct?

• Stars are all nearly the same size.

• Stars are so far away they look tiny.

• Stars are much smaller than Earth.

• Stars are all about the same brightness.

The force of _______ can push or pull objects if they are made of iron or steel.

• magnetism

• friction

• gravity

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

An electric stove changes electrical energy into---

• light energy

• mechanical energy

• heat/thermal energy

• sound energy

When you plug in a lamp and turn the switch on, what is the evidence that energy is present?

• You have to turn it off to see the evidence of energy.

• You turned the switch on.

• The light is shining.

• You hear a click.

Tags

NGSS.MS-PS3-5

What is the process where a solid changes to a liquid?

• freezing

• evaporating

• condensing

• melting

Tags

NGSS.MS-PS1-4

What is the process where a liquid changes to a gas?

• freezing

• evaporating

• condensing

• melting

Tags

NGSS.MS-PS1-4

What is the process where a gas changes to a liquid?

• freezing

• evaporating

• condensing

• melting

Tags

NGSS.MS-PS1-4

What is the process where a liquid changes to a solid?

• freezing

• evaporating

• condensing

• melting

Tags

NGSS.MS-PS1-4

When thermal energy is added, a solid changes to a ___________.

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

When thermal energy is added, a liquid changes to a ___________.

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4