7 Cool Science Experiments For Kids To Do At Home

Besides, children are born scientists. They’re always experimenting with something, whether they’re throwing a plate of spaghetti on the wall, blowing bubbles in the bathwater, or stacking blocks into an intricate tower only to destroy it in one big swipe.

Looking for a very simple science experiments to do at home with your kids? Maybe you need some ideas for summer or a rainy day. These are the coolest science Experiments for Kids to do at home.

1. Water Walking

You’ll need six containers of water for this one: three with clear water, one with red food coloring, one with blue coloring, and one with yellow coloring. Arrange them in a circle, alternating colored and clear containers, and make bridges between the containers with folded paper towels. Your kids will be amazed to see the colored water “walk” over the bridges and into the clear containers, mixing colors, and giving them a first-hand look at the magic of capillarity.

2. Make a Sundial

Unravel the mysteries of time. Or at least figure out the basics by setting up a sundial outside. Take time each hour to check the sun’s positioning and make a note of it so your sidekick can see the bigger picture.

3. Pencils Through a Bag of Water

Kids might guess that if you pierce a bag of water with a sharpened pencil, the water would all leak out. In fact, if you do it right, the polymers of the bag’s plastic will re-seal around the pencil, and your counters will stay dry (and your kids will be amazed). You can get them thinking about the chemical compositions that make up everyday items.

4. Whirlpool in a Bottle

It doesn’t take much of this simple little science experiments: just two empty and clear 2-liter bottles, a metal washer, water, and some duct tape. Food is an optional colouring. Fill one bottle with water of about two-thirds. Place the bottle washer and line up the empty bottle on top of the water-filled one. Wrap the duct tape around the middle, so the two bottles are sealed together. Turn on the bottles instead. Does the water go straight down, or do you see a mini whirlpool (for a better effect, swirling the top or bottom a bit)? A vortex is called the swirling wind, and all tornadoes, hurricanes, and typhoons are examples of air vortexes. This is an example of a whirlpool since you are using water. As the water spins faster, it pushes the bottle to the outside, creating a hole in the centre. The air from the bottom of the bottle comes up in the centre, and the water from the top flows through the hole back down.

5. How to Make Invisible Ink with lemon juice or milk.

Gather your tools and supplies. You’ll need a piece of paper, a cotton swab, a heat source (works a lamp or electric stove), and milk or lemon for this experiment.

If you are using lemon juice, squeeze your lemon into a glass. You can mix it with a little bit of water. Dip your cotton swab into the milk or lemon juice and start writing your message. Let your message dry completely.

Once dry, an adult should hold the sheet of paper over a heat source. We used an electric stovetop. You can also use a lamplight or blow-dryer.

As the milk or lemon “ink” heats up, it will oxidize and turn brown. You can try these science experiments with other substances such as vinegar, honey, or orange juice.

6. Egg in a Bottle

A peeled hard-boiled egg can’t fit into a bottle without smashing into a big mess, can it? It can — if you put a burning piece of paper in the bottle first. The burning paper in the bottle causes the air to expand, and the pressure to go up. When the fire runs out of oxygen, the temperature cools and the air contracts, sucking the egg through the bottle opening. The fire and the sucking of the egg make this an extra-dramatic experiment.

7. Lava Lamp

Oil and water with food coloring don’t mix, teaching kids about density. For fun, add an antacid tablet, and bubbles start to flow all around like a groovy lava lamp.