# States of Matter

Most people are familiar with three states of matter: solid, liquid and gas. Actually, if you dig into the world of physics, there are several more, but for now we will only add plasma to the list, and we will look at the first three states before talking about plasma.

## Solid

Things like rocks, wood and ice are solid. Solids stay the same size and shape, no matter what container we put them in.

## Liquid

Things such as alcohol, oil, and water are liquids. They stay the same size, but they change their shape to fit their container.

# Squeezing Matter

This investigation comes from a request made by a teacher. She wanted an easy way to demonstrate how different states of matter react to pressure.

# What is a Higgs boson, and why should I care?

The Higgs boson is one of the particles that have been predicted, but has only recently been detected. It was predicted by several physicists, including theoretical physicist Peter Higgs. That is where the first part of the name came from.

OK, so what is a boson? That huge number of elementary particles is divided into two major groups: fermions and bosons. Fermions are sometimes called matter particles because they are the particles that take up space. Two fermions cannot be in the same spot at the same time.

# Teach It Right the First Time.

What are the different states of matter? It’s not a difficult question, but the answer often depends on how old you are.

In Elementary School, you were probably told that there are three states of matter: solid, liquid, and gas, and that all matter is in one of those three states.

# Adding to a Full Cup

When is a glass full of water really full? You may be surprised at how much you can add to a full glass without overflowing the water.

# Crushed Can

This experiment is a classic demonstration of air pressure that also shows how drastically matter changes as it moves from one state to another.