Heating makes things warmer.
Cooling makes things colder.
The sun gives us heat and keeps the Earth warm.
Ice and fans help cool things down.
Fire, stoves, and heaters make heat.
Air conditioners and refrigerators help keep things cool.
Rubbing your hands together makes them warm.
Wind can make you feel colder.
Water can change when heated (it turns into steam).
Water can freeze when it gets very cold (it turns into ice).
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