Students view an animation showing that heat causes the molecules in ... Show the animation Heating and Cooling. Explain that the butter is made up of molecules of fat. When the butter is solid, the ...

Some chemical reactions change temperature, change color, produce a gas, or make a solid from two liquids. Try this reaction and see what it does! Pour 1 tablespoon of hydrogen peroxide into a cup.

And if you heat up a liquid even more ... can exist in three states - solid, liquid or gas. By heating or cooling a substance, its state can be changed. melting - the process of a solid turning ...

Solids and liquids can be changed from one state to another by heating or cooling. Heat melts a solid and turns it into a liquid. Cooling freezes a liquid into a solid. If water (liquid ...

The system can cool and heat without using volatile refrigerants or burning fossil fuels by exploiting the “elastocaloric effect” in nickel-titanium (Ni-Ti) shape memory alloys. Dubbed elastocalorics, ...