- A dark shape formed when an object blocks light is a __________ .
Your answer:
moon
rock
shadow
sun
- A piece of transparent glass or plastic that brings together or apreads rays of light is a __________ .
Your answer:
lens
lamp
candle
crayon
- An up and down or back and forth motion is a _________ .
Your answer:
dog
pool
wave
number
- A ball rolling is an object in _________ .
Your answer:
motion
sound
pitch
volume
- How fast something moves is its _________ .
Your answer:
shadow
speed
vibration
gravity
- A _________ is a back and forth motion.
Your answer:
volume
light
vibration
shadow
- The _______ of an instrument is how high or low it sounds.
Your answer:
pitch
volume
wave
speed
- The loudness of a sound is its ________.
Your answer:
pitch
volume
wave
speed
- Rubbing objects together will make ________ .
Your answer:
heat
pitch
gravity
sound
- We use some of the earth's _________ to make heat.
Your answer:
motion
natural resources
gravity
speed