Lesson 7 & 8 LIGHT, HEAT & SOUND

The earth's main source of light

• sun

• moon

• stars

• black

It is not a color because it is the absence of light.

• red

• violet

• black

• green

Materials that give off their own light

• transparent

• opaque

• luminous

• lens

Materials where light can pass through

• opaque

• transparent

• luminous

• thermometer

Materials where Light cannot pass through

• opaque

• luminous

• transparent

• black

It is a glass with at least one curved surface.

• cylinder

• cone

• lens

• window

This object measures temparature.

• tube

• meter

• thermometer

• geothermal energy

It is the energy you hear.

• noise

• sound

• heat

• light

It is the sound that bounces back.

• ball

• echo

• vibrates

• rubber

It is the loudness or softness of sound.

• sound

• volume

• pitch

• energy