That said, there are plenty of examples of true wealth that matter more than money ever could. From having the freedom to connect with loved ones regularly to experiencing true peace of mind ...

Solids, liquids and gases are called the three states of matter. Liquids can flow or be poured easily. They are not easy to hold. Liquids change their shape depending on the container they are in.

Students are introduced to the idea that matter is composed of atoms and molecules that are attracted to each other and in constant motion. Students explore the attractions and motion of atoms and ...