Want to get your kids interested in science? Experiment with these easy, educational projects that are fun for the whole family.

homemade slime
Credit: jarabee123/Shutterstock

Science doesn't have to be limited to school laboratories. Indeed, these easy science experiments for kids can be completed in your own kitchen or backyard. All you need are a few household stapes (such as flour, glue, and coffee grounds), and a desire to learn something new. Get ready to start experimenting! 

1. Homemade Fossils

What You’ll Need

  • 1.5 cups flour
  • 1 cup used coffee grounds
  • 1/2 cup salt
  • 1/4 cup sand
  • 1 cup water
  • "Artifacts"—a variety of small objects that can be hidden (coins, small plastic figures, toys, etc.)
  • Food coloring (optional)
  • Glitter (optional)

The Directions

Mix the flour, coffee grounds, salt, sand, and water together. Form the mixture into round, flat balls; if desired, decorate the balls with food coloring or glitter. Press an "artifact" firmly into each ball then carefully remove it to reveal an impression. Place the balls on a cookie sheet lined with waxed paper and bake for 20 minutes at 150 degrees Fahrenheit. Upon heating, the balls will shrink slightly. Once the balls have cooled and hardened, the fossil is complete. 

Alternatively, "artifacts" could be hidden inside the balls. With this method, once the balls have cooled, use a small hammer to break it open and discover the hidden treasure.

Used with permission from Discovery Place, Charlotte, North Carolina.

2. Jumping Penny

Put an empty glass bottle in the freezer overnight. Take the bottle out of the freezer and quickly put a penny over the mouth of the bottle. Hold both of your hands tightly around the bottle. The penny should begin to jump up and down because the heat from your hands flows through the glass and warms up the air inside the bottle. As the air gets warmer, it expands, pushing up on the penny and making it jump.

Used with permission from Sci-Port Discovery Center, Shreveport, Louisiana.

3. Make Your Own Slime

What You’ll Need

  • Disposable cup
  • 1 bottle of glue (like Elmer's)
  • 1/2 teaspoon baking soda
  • 1 teaspoon contact solution
  • Cornstarch (optional)

The Directions

Empty the bottle of glue into the disposable cup, then mix in the baking soda and contact solution. Add some water if it feels dry, and add cornstarch if it's too wet. If desired, you can also mix in glitter, food coloring, or other fun additives. Then play with it: See if it can be flattened, twisted, stretched, or bounced. Place the slime in a sealed plastic bag in the refrigerator. Don't let it dry on surfaces because it will bond to them. See full instructions here.