1.
The largest planet in our solar system
2.
The ability to do work or cause change
3.
The star at the center of our solar system
4.
A plant that makes its own food
5.
An animal that eats plants or other animals
6.
An animal that eats both plants and animals
7.
When light bounces off a surface
8.
How loud or soft a sound is
9.
How high or low a sound is
10.
A dark area made when something blocks light
11.
A quick back-and-forth movement that makes sound
12.
An animal that hunts and eats other animals
13.
The natural home of a plant or animal
14.
The force that pulls things down to Earth
15.
A force that slows things down when they rub together
16.
The path a planet takes around the Sun
17.
An animal with fur or hair that feeds its babies milk
18.
A state of matter that has a fixed shape and volume
19.
A state of matter that spreads out to fill the space it’s in
