S2 final grade 4 science

______ energy needs a medium to travel through.

• sound

• light

• chemical

• heat

Objects that allow almost all light to pass through are called_____.

• transluscent

• transparent

• opaque

• transporter

A disturbance that carries energy and travels in a repeating pattern is called ______.

• ray

• wave

• crest

• trough

Which type of wave moves in the same direction as the particles?

• transverse wave

• longitudinal wave

• perpendicular

• wave

Why does a red car appear red to the human eye?

• Because it absorbs all colors except red, which is reflected.

• Because it only emits red light.

• Because it does not reflect any color at all.

• Because it absorbs red light and reflects all other colors.

Which type of rock is formed under high pressure and heat?

• Igneous

• Metamorphic

• Sedimentary

• Limestone

Which type of rock is made from molten rock or lava?

• igneous

• sedimentary

• metamorphic

• sandstone

When light hits an object, and it is not reflected or bent, it is ________.

• Reflected

• Refracted

• Absorbed

• Transverse

The number of wave repetitions in a certain amount of time is called _____

• wave

• crest

• frequency

• wavelength

Plant roots that grow inside rocks and break them into smaller pieces is an example of

________?

• Physical weathering

• Chemical weathering

• Deposition

• Erosion