Ugh, I don't understand a thing about substances! What an I going to do about the test?
Don't worry! Its just about solids, liquids and gases right? I can help you revise.
Thanks that would help a lot!
Let's start with the easiest substance, solid. Solids are everywhere, you can't escape from it! Everything from your coffee cup to the school building is a solid.
The atoms inside a solid are closely packed and contain the least amount of kinetic energy out of all of the states of matter.
Okay, but what about liquid?
Well liquids are easy, for example your coffee is a liquid. The atoms are Liquids can fill any shape or container that it's put in, for example a cup. If you put a solid block in a cup, the block wouldn't take the same shape, would it?
You're right! What about gas?
Gas is made up of individual atoms. One example of gas is air, it's everywhere! Some gases can float up or sink down. If you put gas in a container, it will take up all of the space, unlike how a liquid would just stay on the bottom.
Okay, I think I understand, Solids will stay in its original form, while liquids would take the shape of the container, and gases would fill the container.
Wait! I have a cool experiment that you ca do! Have you ever heard of a non-Newtonian fluid?