1.
A substance through which something is carried or transmitted
2.
The bending of light waves when they pass from one kind of matter to another
3.
Matter that does not have its own shape but can flow, like water or juice
4.
When a liquid slowly changes into a gas, like water turning into steam
5.
How loud or soft a sound is
6.
Tiny bits of matter that move and carry sound
7.
When something becomes different
8.
When heat moves through liquids or gases, like warm air rising
