There’s a much better way to teach kids aside from reading books. Here are 10 easy science experiments you can do with your kids today that they’ll definitely remember far longer compared to when they just read them from the books!
Click the “next” arrow for these 10 easy science experiments. Get ready for great learning and some awesome fun!
Purpose
To demonstrate how salt is used to measure humidity.
Materials
- scissors
- black construction paper
- 2 saucers
- teaspoon (5 mL)
- table salt
- pencil
Procedure
- Cut a piece of black construction paper to fit in the bottom of both saucers.
- Sprinkle ½ teaspoon (2.5 mL) of salt on the black paper in each saucer.
- Hold your mouth about 6 inches (15 cm) from one of the saucers.
- Exhale toward the salt in one saucer for about 2 minutes.
- Use the pencil to stir the salt in both saucers.
Results
The salt that was breathed on forms clumps when stirred, while the salt crystals on the other dish remain separate.
Why?
Exhaled breath contains water vapor. Table salt has a strong attraction for water and readily absorbs moisture from the air or your breath. The water causes the salt crystals to stick together. Air that contains a large amount of water causes salt to become soggy. You can tell the humidity is high when salt is difficult to shake from saltshakers.
