Science Review Grade 4

When energy is being stored and not used, what type of energy is it?

• chemical energy

• potential energy

• radiant energy

• kinetic energy

Plucking a guitar string is an example of transforming ....

• the energy of motion to friction

• the energy of motion to sound energy

• wind to electricity

• heat energy to light energy

Which state of matter is cannot be compressed and has definite shape?

• gas

• liquid

• solid

• plasma

As depths increases, liquid pressure ....

• increases

• close to 0

• decreases

• stays the same

We can see meteor shower happening in ... layer.

• mesosphere

• stratosphere

• troposphere

• thermosphere

Characteristics of water that determine whether the water is suitable for use or not is called ....

• water pressure

• water bodies

• turbidity

• water quality

The process that describes the movement of water between the Earth's surface and the atmosphere is called ....

• water cycle

• ring of water

• rain

• watering movement

Which statement about particles is correct?

• particles do not move

• particles move in a solid and in a liquid

• particles only move in liquid

• particles move only in solid

A force that resists motion created by objects rubbing together is ....

• friction

• force

• speed

• gravity

Light travels in ... lines.

• straight

• curved

• wavy

• zigzag