How Do You Make A Thermometer For Kids?
Making a thermometer is a simple and fun activity for teaching children about temperature. This thermometer does not measure exact degrees, but will allow children to experiment with how changes in temperature affect a thermometer. The effects of heat and cold that move mercury within a traditional thermometer will cause the liquid in your homemade thermometer to move, as well. As the temperature around your homemade thermometer increases, the liquid inside will expand and rise; as the temperature decreases, the liquid will reverse its expansion and go back down. Step 1 Fill the bottle 1/4 of the way full with water. Step 2 Pour rubbing alcohol in until the bottle is half full. Step 3 Add a drop or two of red food coloring to simulate mercury. Step 4 Place the straw in the bottle, but do not let it touch the bottom. Press a small amount of modeling clay on top of the straw and use the clay to seal the edges of the bottle’s top. The clay will hold the straw in place and prevent it from
