5 Easy Hands-On Science Experiments for Kids

Engaging children in hands-on science experiments is a fantastic way to spark their curiosity and create a love of learning. You can find out more about the benefits of hands-on science experiments here!

Here are five simple and fun experiments that you can do with your kids at home using common household items.

PLEASE NOTE: ALWAYS supervise children with science experiments and explain proper personal protective gear, fire safety, and safety mixing substances. When in doubt, research before mixing any two agents – even if they seem harmless. Goggles, gloves, and a protective layer over exposed skin is advised.

1. Rainbow in a Glass

• Materials: Five small glasses, sugar, water, food coloring, spoon, dropper.
• Instructions:
  1. Fill each glass with the same amount of water.
  2. Add different amounts of sugar to each glass (e.g., 1 teaspoon to the first, 2 teaspoons to the second, and so on).
  3. Stir until the sugar dissolves.
  4. Add different food coloring to each glass.
  5. Using a dropper, layer the colored water into a single glass in order of sugar concentration (starting with the most sugar).
• Science Concept: This experiment demonstrates density and how different concentrations of sugar solution create layers of different densities.

2. Homemade Lava Lamp

• Materials: A clear plastic bottle, water, vegetable oil, food coloring, Alka-Seltzer tablets.
• Instructions:
  1. Fill the bottle two-thirds with water.
  2. Add vegetable oil to fill the rest of the bottle.
  3. Add a few drops of food coloring.
  4. Drop an Alka-Seltzer tablet into the bottle and watch the colorful blobs move up and down.
• Science Concept: The experiment shows the interaction between water and oil, which do not mix, and the reaction of Alka-Seltzer creating gas bubbles that move the colored water.

3. Invisible Ink

• Materials: Lemon juice, water, cotton swabs, white paper, lamp or heat source.
• Instructions:
  1. Mix lemon juice with a few drops of water.
  2. Use a cotton swab to write a secret message on the paper with the lemon juice mixture.
  3. Let the paper dry completely.
  4. Hold the paper close to a heat source (like a lamp) to reveal the message.
• Science Concept: The heat causes the acidic lemon juice to oxidize and turn brown, revealing the hidden message.

4. Volcano Eruption

• Materials: Baking soda, vinegar, dish soap, food coloring, small plastic bottle or container, tray or large plate.
• Instructions:
  1. Place the plastic bottle in the center of the tray.
  2. Fill the bottle halfway with baking soda.
  3. Add a few drops of dish soap and food coloring.
  4. Pour vinegar into the bottle and watch the eruption.
• Science Concept: This experiment demonstrates an acid-base reaction, producing carbon dioxide gas which creates the fizzy eruption.