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5 Easy Science Experiments You Can Do at Home

4 min read

A close-up of an egg covered in carbon dioxide bubbles during a kitchen chemistry reaction
Carbon dioxide bubbles form during a kitchen chemistry reaction, the same gas-producing reaction at work in several of these experiments.

You do not need a lab coat, and you definitely do not need expensive gear. Some of the best science out there runs on vinegar, paper towels, and whatever soda is sitting in the fridge.

Each one below comes with materials, steps, and a plain-English explanation, so you can talk through what your kid just watched happen.

Time needed
30-45 minutes for all five
Best age range
Ages 5 and up, with adult help for younger kids
Adult supervision
Yes, especially for the Egg in a Bottle experiment, which uses fire
What kids will learn
chemical reactions, gas pressure, density, and capillary action
Safety note
An adult must light the match and supervise the egg experiment closely

1. Baking Soda and Vinegar Volcano

Chemistry

Materials

  • 1/2 cup baking soda
  • 1 cup white vinegar
  • A few drops of dish soap
  • Food coloring (optional)
  • A cup or bowl

Steps

  1. Dump the baking soda into the cup.
  2. Squeeze in the dish soap and a few drops of food coloring.
  3. Pour in the vinegar and get your hand out of the way.
  4. Watch the foam climb straight out of the cup.

The Science

Baking soda and vinegar react the second they touch and start pumping out carbon dioxide gas. The dish soap catches all that gas in bubbles, which is what turns a plain fizz into an eruption.

2. Dancing Raisins

Physics

Materials

  • A clear glass
  • Sparkling water or clear soda
  • A handful of raisins

Steps

  1. Fill the glass with sparkling water.
  2. Drop in a few raisins.
  3. Keep watching. It takes a minute before they start moving.

The Science

Tiny carbon dioxide bubbles grab onto the wrinkles in each raisin and float it to the top. Up there the bubbles pop, the raisin sinks, and the whole ride starts over.

3. Homemade Lava Lamp

Chemistry & Physics

Materials

  • A clear bottle
  • Vegetable oil
  • Water
  • Alka-Seltzer tablets
  • Food coloring

Steps

  1. Fill the bottle about three quarters full with oil.
  2. Top it off with water and a few drops of food coloring.
  3. Snap off a small piece of tablet and drop it in.

The Science

Oil and water refuse to mix, so they sit in layers. The tablet makes gas bubbles that grab colored water and haul it upward, then let go at the top so it sinks back down.

4. Paper Towel Chromatography

Chemistry

Materials

  • Paper towel or coffee filter
  • Washable markers
  • A cup of water
  • Scissors

Steps

  1. Cut a thin strip of paper.
  2. Draw a fat marker dot near the bottom.
  3. Dip only the very bottom edge in water and keep the dot dry.
  4. Wait, and watch one color split into several.

The Science

That single marker color is really a few different pigments mixed together. Water drags them up the paper, and because some travel faster than others, they spread out into stripes.

5. The Egg in a Bottle

Physics

Materials

  • A peeled hard-boiled egg
  • A glass bottle
  • A small piece of paper
  • Matches with adult supervision

Steps

  1. An adult lights the paper and drops it into the bottle.
  2. Set the egg on the opening, narrow end down.
  3. Stand back and watch the bottle swallow it.

The Science

The flame heats the air inside the bottle. As that air cools it takes up less room, so the pressure inside drops, and the ordinary air pressing on the outside shoves the egg right through the neck.

Making It Stick

When an experiment wraps up, ask your kid to draw what happened and write one sentence about why. Saying it out loud to someone else is what turns a cool moment into something they actually understand.

Want more on the Baking Soda and Vinegar Volcano? Our full project guide has photos and fixes for when it does not go the way you expected.

Workshop Connection

At one workshop, students argued about why the raisins kept bobbing up and down for almost ten minutes. That is longer than the setup took. That argument is the whole goal.
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