States of matter
This state of matter has a fixed shape and a fixed volume.
What is solid?
This process changes ice into water.
What is melting?
This hard material comes from trees and is a SOLID.
What is wood?
This state of matter has NO fixed shape and volume.
What is gas?
When water gets so hot it makes lots of bubbles and turns into steam.
What is boiling?
We breathe this invisible GAS to stay alive.
What is Oxygen?
This state of matter has no shape but keeps the same volume.
What is liquid?
This process changes a liquid into a solid, like water into ice.
What is freezing?
This silvery METAL is special because it is a LIQUID at room temperature.
What is Mercury?
This is the fourth state of matter.
What is plasma?
Liquid becomes gas through this process.
What is evaporation?
This shiny, heavy metal is a SOLID at room temperature and is used to make things strong.
What is Iron?