Next Generation Science Standard
Disciplinary Core Ideas: Heating or cooling a substance may cause changes that can be
observed. Sometimes these changes are reversible and sometimes they are not (2-PS1-4).
2.PS1.4: Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.
- Matter can exist in three forms: solid, liquid and gas.
- All matter is composed of small particles.
- A solid has shape.
- When heat is taken away from a liquid and the molecules get cold enough - the liquid may turn into the solid state. A great example is putting water into a container and then putting it into a freezer - the water turns to ice.
- Changing from one state to another is called a phase change. Riebe guiltyThe A
- One glass jar per group of four or five students - or a clear plastic cup
- Food coloring