Transforming your kitchen into a science lab is one of the easiest and most exciting ways to spark a kid’s curiosity. Chemistry is all around us—from the food we eat to the products we use every day. When different substances interact, chemical reactions occur that change colors, create carbon dioxide bubbles, or form entirely new materials! 

Here are 5 engaging, hands-on chemistry experiments you can easily try at home with simple household items.

1. Acids and Bases, a.k.a "Can we make it explode?"

Our number one question when teaching a chemistry class! The classic volcano or fizzy potion experiment is a favorite for a reason. It provides an immediate visual reaction that clearly demonstrates how acids and bases interact.

Materials Needed

• Baking soda (a base)

• Vinegar or lemon juice (an acid)

• Food coloring or color tablets

• Small cups or a plastic bottle

• Dish soap (optional, for extra foam)

How to Do It

1. Set up a clear cup or plastic bottle on a tray to catch spills.

2. Add 2 tablespoons of baking soda into the container.

3. Add a few drops of food coloring and a squeeze of dish soap.

4. Pour in vinegar and watch the instant explosion of bubbly foam!

The Science

When sodium bicarbonate (baking soda, a base) combines with acetic acid (vinegar, an acid), they undergo a chemical reaction that releases carbon dioxide gas. The gas gets trapped by the liquid and soap, creating an effervescent eruption of bubbles.

2. Bubbling Lava Lamp

Create a dazzling, bubbly density lamp right on your kitchen table using simple household items.

Materials Needed

• A clear bottle or glass jar

• Vegetable oil

• Water

• Food coloring

• Effervescent tablets (such as Alka-Seltzer or True Color tabs)

How to Do It

1. Fill the jar about 3/4 full with vegetable oil.

2. Fill the remainder of the jar with water, leaving a bit of space at the top.

3. Add 5–10 drops of your favorite food coloring.

4. Break an effervescent tablet into small pieces and drop one piece into the jar.

5. Watch colorful blobs rise and fall like a real lava lamp!

The Science

This experiment demonstrates two major science concepts: density and chemical reactions. Water is denser than oil, so it sinks to the bottom. When the effervescent tablet hits the water layer, it dissolves and reacts to produce carbon dioxide gas bubbles. These gas bubbles attach to the colored water drops, floating them to the top. Once the bubbles pop at the surface, the dense water sinks back down.

3. Changing Colors!

We will start with  the primary colors: red, yellow and blue.  Primary colors are those that cannot be made by mixing other colors together. When we combine them, we can make secondary colors and many new shades! 

Materials Needed

• Food coloring in primary colors (red,blue, yellow)

• Six cups

• Water

• Eyedropper or straw

How to Do It

1. Begin filling 3 cups with water and several drops of food coloring in primary colors. 

2. Next, use your eyedropper (or if you don’t have one, cut a straw in half and put your finger on one end to trap liquids inside). Practice drawing up some liquid from a cup with primary colors. 

3. Start with purple!  Which 2 colors combine to make purple? Red and blue. Add 10 drops of each and see what happens. Is it purple? Add more of each to get the most vibrant shade of purple.

4. Repeat with red and yellow to make orange.

5. Repeat with blue and yellow to make green.

You should now have 6 cups with (approximately) the following colors: 

The Science

The three primary colors—red, blue, and yellow—serve as the foundation for all other colors in the visible spectrum. The "Big 3" cannot be created by combining or mixing any other colors together. However, by mixing these primary colors in various proportions, you can create secondary colors like green, orange, and purple, as well as a wide array of intermediate shades and hues.

4. Bounce-tastic  Slime

Slime is a fantastic hands-on way to learn about chemistry and materials science while exploring non-Newtonian fluids. A non-Newtonian fluid is one which has both the properties of a liquid and a solid!

Materials Needed

• 1/2 cup white glue

• 1 tsp of powdered Borax (sodium borate - you can find this is the laundry aisle) dissolved into ½ cup of warm water 

• Food coloring and spoon or washable markers/paint and craft sticks

How to Do It

1. Add your white glue to a plastic cup.  If you have food coloring, add 2-3 drops to the glue and stir.

2. If you don’t have food coloring, try coloring a craft stick with a washable marker (or if you are brave and don't mind the mess add a dab of paint to the craft stick) then use it to stir your glue! Your glue will pick up the color from the marker or the dab of paint.

3. When we add the next chemical called sodium borate, it will force the molecules in the mixture to rearrange and stick together!  Slowly add 1-2 tsp sodium borate in solution (borax) to the glue mixture and stir.

4. Remove the mixture from the cup and squeeze out excess liquid. If the mixture remains sticky, add a bit more of the sodium borate solution to wash off.

5. Roll it and give it a bounce!  It should make a super bouncy ball. 

The Science

Glue is made up of long, flexible molecules called polymers. When you add the activator (boric acid/borax), it links the long polymer chains together in a process called cross-linking. This turns liquid glue into a stretchable, bouncy non-Newtonian fluid that flows like a liquid when poured, but hardens when squeezed.

5. Candy Chemistry

This experiment is sweet! In this experiment, you will test your candy to see if it has acid in it. If your candy has acid, you will see your candy fizz and produce tiny bubbles in the solution. 

Materials Needed

• Colored candies (like M&Ms, Skittles, Mike and Ike, Nerds, etc)

• Baking soda

• Spoon

• Water

• Plastic cup 

How to Do It

1. Fill a separate cup for each candy you wish to test with ¼ cup of water.

2. Place each candy in a separate cup. Let soak for 3 minutes. 

3. Add ¼ tsp of baking soda and stir gently.

4. Observe!  Do you see tiny bubbles in the water? 

The Science

Some candies contain sour acids, like the ones in lemons! When you mix the sour candy water with baking soda, it creates a bubbly reaction that makes tiny carbon dioxide gas bubbles. If your candy water fizzes, you know the candy has acid hidden inside!

Safety First!

Even safe kitchen chemistry requires good lab habits! Always remember the basic rules of science fun:

• Never taste or ingest your experiment ingredients unless explicitly instructed.

• Wash your hands after handling ingredients.

• Keep your workspace clean and protect surfaces with a tray or tablecloth.