Science Ch. 12

When your body blocks sunlight, you form a(n) _______________________.

• shadow

• switch

• vibrates

• opaque

A plane taking off has a greater ___________ than a bird's song.

• shadow

• volume

• pitch

• insulator

Metal is a good _____________ because heat moves through it easily.

• switch

• volume

• conductor

• insulator

When something moves back and forth quickly it, ______________.

• vibrates

• opaque

• switch

• insulator

Objects that you cannot see through are ___________________.

• translucent

• opaque

• reflects

• shadow

The faster and object vibrates, the higher its ________________.

• volume

• conductor

• pitch

• shadow

Clear, colored glass is ____________ because it blocks some light and lets some light pass through it.

• opaque

• translucent

• reflects

• shadow

When light bounces off an object, it ________________.

• opaque

• translucent

• reflects

• shadow

Heat does not move easily through a(n)_____________.

• insulator

• conductor

• reflects

• shadow

A(n) ________________ opens and closes a circuit.

• insulator

• conductor

• switch

• shadow