Did you know that all foods we eat have some type of energy in them. Energy is heat for our bodies.

We will light a piece of food to show it has energy, Otherwise it would not burn and then use the energy from it burning to show it can heat water.

Punch two holes in the top of the small can on opposite sides. Pour a small amount of water into the small can. Only use room temperature water.

Use the thermometer to record the temperature.

Now have your parents use a lighter and light the marshmallow on fire.

Right away put the coffee can over the marshmallow and put the water filed soup can with wooden skewer on top of that. Make sure to record your temperature each time and use new room temperature water each time you do this.

Some foods have more energy inside them than others and that energy can be used to heat water just like it used the energy to keep our bodies warm.