Use a plastic bottle
Remove the label and rinse the bottle
Make a launcher or use a safe bottle rocket launcher
Fill the bottle about one-third with...
Use a sturdy plastic bottle
Remove the label and rinse the bottle
Make a simple launcher or use a safe bottle rocket launcher
Fill the bottle partially...
Lemon juice
Milk
Baking soda and water
White vinegar
Sugar water
Onion juice
Heat source to reveal the writing
Cotton swab, paintbrush, or toothpick to write with
White paper
Let the writing dry...
Dissolve sodium acetate trihydrate in water by heating it until no more solid will dissolve
Filter out any impurities if needed
Let the solution cool undisturbed...
Gather baking soda
Gather vinegar
Gather dish soap
Gather red food coloring
Gather a small bottle or cup
Gather clay, paper mache, or playdough
Place the bottle or cup on...
Use a ferromagnetic material such as iron, steel, nickel, or cobalt
Rub the material in one direction with a strong permanent magnet many times
Place the...
Use a snow machine or snow gun with cold, dry air
Spray fine droplets of water into subfreezing air
Keep the temperature below freezing
Use very low...
