In science, we are learning about the states of matter. Many different molecules, like water, metal, and rock, can be turned into a solid when they are cold enough, and liquid when they are hot enough. In fact, keep heating up liquids like water and they'll turn into a gas! Even metal, when heated up enough (like on the sun) turns into gas!
Here are more things you should know about matter and different states:
Gas: These molecules don't need to stay close together. They can spread out and even float. Gas molecules move fast.
Liquid: These molecules mold to the container they're in, except if they spill, they spread out on the ground. They don't move as fast as gas.
Solid: These molecules are usually hard to break apart. They are stuck close together and don't move much.
Here is a song to help you remember the states of matter. You might recognize the tune, but it's sung by a 6th grade teacher! He talks about 4 states of matter, but you only need to know the 3 above for fourth grade.
Four States of Matter Song
Here are more things you should know about matter and different states:
Gas: These molecules don't need to stay close together. They can spread out and even float. Gas molecules move fast.
Liquid: These molecules mold to the container they're in, except if they spill, they spread out on the ground. They don't move as fast as gas.
Solid: These molecules are usually hard to break apart. They are stuck close together and don't move much.
Here is a song to help you remember the states of matter. You might recognize the tune, but it's sung by a 6th grade teacher! He talks about 4 states of matter, but you only need to know the 3 above for fourth grade.
Four States of Matter Song