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Published Apr 17, 2024 ⦁ 16 min read
Easy and Simple Science Experiments for Tech-Savvy Kids

Easy and Simple Science Experiments for Tech-Savvy Kids

Looking for easy and simple science experiments for tech-savvy kids? Dive into our list of fun and educational projects that blend technology with basic science concepts, perfect for young explorers. From creating mini hovercrafts and electromagnets to building your own video games with Scratch, these activities are designed to spark curiosity and teach valuable lessons in physics, chemistry, and more. Whether you're making a solar-powered marshmallow roaster or exploring augmented reality, each experiment offers a hands-on approach to learning that's both enjoyable and informative.

Quick Overview:

  • Hovercraft Experiment: Learn about air pressure by making a mini hovercraft.
  • Electromagnet: Discover electromagnetism with a nail, wire, and battery.
  • Chemical Reactions: See a balloon inflate with baking soda and vinegar.
  • Water Pressure: Explore water pressure with a Cartesian diver.
  • Simple Machines: Build a catapult and a bristlebot to understand physics.
  • Electricity Basics: Set up a water alarm and make a lemon battery.
  • Physics Fun: Create a 'dancing' ghost with balloons and static electricity.
  • DIY Projects: Craft a lava lamp, a mini robot, and more using simple circuits.
  • Coding for Kids: Design a video game and simulate plant growth with Scratch.
  • Solar Cooking: Make s'mores with a solar-powered roaster.
  • Magnetic Slime: Combine science and fun with magnetic slime.

These experiments are not just about the results but about encouraging kids to ask questions, try new things, and understand the world around them. Perfect for young innovators ready to embark on a scientific adventure!

1. DIY Lava Lamp Using Simple Circuits

Lava lamps are super cool and can make your room look awesome. Here's a simple way to make one using basic electronic parts.

You will need:

  • An empty plastic bottle
  • Vegetable oil
  • Food coloring
  • Alka-Seltzer tablets
  • LED light and coin battery


  • Fill the plastic bottle about three-quarters full with vegetable oil.
  • Drop some food coloring into the oil. Mixing red, blue, and yellow looks really neat.
  • Break an Alka-Seltzer tablet into small pieces and drop them into the bottle. They'll go through the oil and start fizzing at the bottom, making the "lava" bubbles.
  • To light it up, stick an LED light with a small battery to the side of the bottle so it shines inside. This makes the colors light up.

The oil and Alka-Seltzer react to make gas bubbles that float up through the oil, just like the wax in a real lava lamp. Adding a light with a small circuit is a fun way to show kids how electronics work.

Leave your lava lamp out overnight, and it'll be a cool nightlight. Try using different colors to see what happens. Just make sure an adult is there to help with the LED and battery. Have fun making your lava lamp!

2. Homemade Mini Robot

Building your own mini robot is a super fun project for kids who are into tech. This project is simple and shows the basics of how robots and coding work, using stuff you probably have at home.

You will need:

  • Empty soda can
  • Googly eyes
  • Pompoms or other things for decoration
  • Hot glue gun (need an adult to help)
  • Battery pack with a switch
  • Small vibration motor
  • Craft sticks
  • Rubber bands


  1. Use the hot glue gun to stick googly eyes and decorations on the soda can. This is your robot's face, so make it fun!

  2. Stick the motor inside the can with hot glue. Make sure the part that spins isn't glued.

  3. Use craft sticks for arms and legs, attaching them with rubber bands.

  4. Stick the battery pack on the back so you can reach the switch.

  5. Turn on the switch and watch your robot move around!

You can make your robot cooler by adding lights or sounds. You could even try to make it walk with some string. This project is a great way to learn about motors and how to power them, all without needing to know how to code. Change up the design and decorations to make your robot one-of-a-kind!

3. Create Your Own Video Game with Scratch

Scratch is a cool, free website created by MIT where kids can make games and animations easily. You don't need to know anything about coding to get started. This activity will guide you through making a simple maze game.

You Will Need:

  • A computer or tablet that can go online
  • A free Scratch account


  1. Visit scratch.mit.edu and sign up for a free account.

  2. Hit "Create" to start making your game. This is the fun part where you get to build everything.

  3. Make your game look cool. You can pick characters, backgrounds, and things for your game. Use your imagination!

  4. Use code blocks to make your characters move. Just click and drag the blocks to connect them.

  5. Create a simple maze for your character to get through. You can add objects to grab or dodge.

  6. Test your game a lot to make sure it works right. If something's not working, try to fix it.

  7. Once you're happy with your game, press "Share" so others can play it too!

Using Scratch to make a game is a great way to learn coding basics while having a ton of fun. You can make all sorts of projects and even tell animated stories. Feel free to change the game's look and the coding to make it uniquely yours. Building your own video games is super exciting!

4. Solar-Powered Marshmallow Roaster

You don't need a campfire to make yummy s'mores. This project lets you use the sun to melt marshmallows and chocolate. It's a green way to cook up a treat.

What You'll Need:

  • A cardboard pizza box
  • Aluminum foil
  • A clear plastic sheet
  • Wooden skewers
  • Marshmallows
  • Chocolate bars
  • Graham crackers


  • Line the inside of the pizza box with aluminum foil. Make sure there's a big opening at the top.
  • Cover this opening with the clear plastic sheet. This traps the heat inside.
  • When it's sunny, skewer a marshmallow and put it inside the box through the plastic.
  • Make sure the box is in direct sunlight.
  • Wait a bit, about 5-10 minutes, for the box to get warm and melt the marshmallow.
  • Now, sandwich the warm marshmallow and a piece of chocolate between two graham crackers to make a s'more!

This project is a cool way to show kids how the sun's energy can be used to cook food. Plus, they can try different setups to see what works best for melting the marshmallows. It's a delicious experiment with solar power!

5. Magnetic Slime

Magnetic slime is a super cool project that combines science and fun. It's really easy to make and lets you see how magnets work in a unique way. Here's a simple guide to making your own magnetic slime.

You Will Need:

  • White school glue
  • Liquid starch
  • Iron oxide powder (available at craft stores)
  • A mixing bowl
  • A spoon
  • Magnets for playing


  • Start by putting about 1 cup of glue into your bowl.
  • Mix in about 1/4 to 1/2 cup of liquid starch. Stir it well.
  • Gradually add iron oxide powder, mixing continuously. Keep adding it until the slime starts to react to the magnets.
  • Once it's mixed well, take the slime out and see how it moves with the magnets.

The reason this works is because the iron oxide powder is attracted to magnets. When you mix it into the slime, the slime itself becomes magnetic. You can pull it, stretch it, and watch it dance around the magnets.

Experiment with different amounts of glue, starch, and iron oxide powder to see how it changes the slime. Remember to keep your magnetic slime in a container with a lid so it doesn't dry out. Enjoy playing with your magnetic slime and exploring how magnets interact with it!

6. Coding a Virtual Plant Growth Experiment

Coding is a cool way for kids to learn about science by doing something practical. This activity is about making a computer program that shows how plants grow in different weather.

You Will Need:

  • A computer or tablet
  • Access to Scratch


  1. Head to Scratch and hit "Create" to start something new.

  2. Pick a simple plant picture and a place for it to live.

  3. Use code blocks to make the plant get taller when you hit the space bar.

  4. Bring in different backgrounds like sunny skies or rain clouds.

  5. Write code so the plant grows quicker or slower based on the background.

  6. Try it out! Switch the backgrounds and watch how your plant changes.

This project is a neat way to see how things like sunlight and water affect how plants grow. You can make it even cooler by adding more pictures, places, and code.

Some fun ideas:

  • Add a person to water the plants
  • Create a greenhouse background that makes plants grow faster
  • Put in snails or bugs that make the plant grow slower

Projects like this are a great way to understand basic coding and science concepts. Play around with the code to see how changing it can teach you more about how it all works. Think about what other nature things you can simulate.

7. Building a Simple Pulley System

Pulleys are a cool way to learn about how things move and how we can use simple machines to make work easier. This activity is all about making a pulley system with things you have at home.

You Will Need

  • 2 paper cups
  • String
  • Scissors
  • Tape
  • Paperclips or washers
  • A stool or chair


  • Take a string about 5 feet long.
  • Make a small hole in the bottom of each cup and thread the string through them.
  • Tie a paperclip or washer to the ends of the string so they don't slip through the cups.
  • Stick one cup to the edge of a stool or chair with tape. This is your pulley.
  • Your child can hold the other cup. This is the part that will move up.

To see the pulley in action, your child should slowly stand up while holding their cup. They'll see the other cup go up. Try adding more weight to the moving cup with extra paperclips. This shows how a pulley can help lift things more easily!

This experiment is a fun way to see how pulleys help us lift heavy stuff with less effort. You can try making different pulley setups or even connect several together. It's a great chance to be creative and learn something new!

8. Crafting a Potato Battery

Making a battery out of a potato is a cool experiment that shows how we can create electricity from a simple chemical reaction. It's a great project for home or the classroom and introduces kids to basic ideas about how batteries work.

What You'll Need:

  • 1 large potato
  • 2 galvanized nails
  • 2 copper pennies (pre-1982 are best)
  • Alligator clip wires
  • Small light bulb or LED


  • Stick the nails and pennies into the potato, making sure they are a couple of inches apart and don't touch each other inside the potato.
  • Connect one alligator clip wire to each nail and penny sticking out of the potato.
  • Hook up the other ends of the wires to the light bulb or LED.
  • Watch as the light bulb turns on, powered by the potato!

The potato has chemicals in it that let electricity flow, and when the nails and pennies are connected, they start a reaction that creates a tiny bit of electricity. This is enough to light up a small bulb.

Here are some extra things to try:

  • Use different fruits or veggies instead of a potato
  • Connect more nails and pennies to make the light brighter
  • Experiment with different kinds of lights to see which ones work best

This activity is a simple way to learn about how batteries work, using things you can find around the house. It's a fun experiment for kids and helps spark curiosity about science and technology.

9. Water Filtration System

Making a water filter is a fun science project that helps kids learn how to clean dirty water. This experiment shows how using things like sand, gravel, and charcoal can help make water cleaner.

What You'll Need

  • Two clear 2-liter plastic bottles
  • Scissors
  • Gravel
  • Play sand
  • Granulated activated charcoal
  • A funnel
  • Dirty water (just mix water with some soil or crushed leaves)


  1. Cut the bottom off one plastic bottle. This will be the top part of your filter.
  2. Put the funnel on the other bottle and add layers of sand, gravel, and charcoal inside. Make each layer about 2 inches thick.
  3. Put the bottle with the cut bottom on top of the other one so the narrow ends are together. Tape them so they stay tight.
  4. Pour the dirty water into the top bottle and watch as it goes through the layers and comes out cleaner at the bottom.

The sand catches the big stuff, gravel gets the smaller bits, and charcoal cleans the water. The water that comes out should look clearer than the dirty water you started with.

Here are some extra tips:

  • Try using different things like cotton balls or coffee filters to see what works best.
  • Filter the water again to see if it gets even cleaner.
  • See how well the filtered water works with soap or food coloring.

This project is a great way to understand how we can clean water using simple materials. It's a chance for kids to think about how important clean water is.

10. Augmented Reality Sandbox

Creating an augmented reality sandbox is a fun and interactive way to learn about geography and landforms. Here's how you can make a simple one at home.

What You'll Need:

  • A plastic storage bin or cardboard box
  • Sand
  • A smartphone or tablet
  • The Augment app (free)


  1. Fill your bin or box with about 2 inches of sand. Make sure it's even.

  2. Open the Augment app on your device and select Sandbox mode.

  3. Aim your device's camera at the sand. You'll see the sand change on your screen, showing different colors and lines.

  4. Now, play with the sand. Mold it into mountains, valleys, or rivers. Watch how these changes show up on your device!

  5. You can even add small toys like little houses or trees to make your sandbox world more interesting. Have fun with it!

This cool project uses augmented reality (AR) to turn a simple box of sand into a live map that changes as you play with it. It's a hands-on way to learn about maps and geography. Plus, it's just fun to see your creations come to life on the screen. Try making a mini version of a place you like or a famous landmark and see how it looks in your sandbox!


Science and technology are super interesting and always changing. Starting with these ten easy experiments, kids can start loving science and thinking about new ideas.

These activities show kids that science is:

  • Really fun and cool
  • Something you can do with stuff around the house
  • Useful for everyday stuff
  • A way to understand how things work

As kids try these experiments, they will:

  • Feel more sure of themselves doing science stuff
  • Learn the basics of how science works
  • Get better at solving problems
  • Be creative in making and designing things

It's not just about the end result, but also about asking questions, trying things out, and finding out new things. Encourage kids to:

  • Ask "what if..." questions and guess what might happen
  • Try different ways and see what happens
  • Think about why things happen the way they do

These activities are just the beginning of understanding the world and how we can be part of it. Today's kids who love tech can be tomorrow's inventors - curious, good at thinking through problems, and excited about science.


What is an easy experiment using the scientific method?

The Rainbow Milk Experiment is a fun and simple way to use the scientific method. You need milk, dish soap, and food coloring. Mix them together and watch as the colors move around like a rainbow. This happens because the soap breaks down the milk's fat, letting the colors mix.

How to do the Skittles experiment?

  • Put Skittles in a circle on a plate, with the curved side down.
  • Gently add warm water to the middle of the plate, just enough to cover the Skittles.
  • Watch as the colors from the Skittles spread towards the center, creating a rainbow.

What is magic milk experiment?

The magic milk experiment makes colorful patterns by mixing milk, food coloring, and soap. Spread milk in a tray, add food coloring drops, then touch the center with a soap-dipped cotton bud. You'll see a burst of colors moving outward!

What are some simple scientific questions for experiments?

  • Does the type of water change how well it sticks together?
  • What's the best time to plant soybeans?
  • Which material keeps heat out the best?
  • How does the shape of an arch affect how much weight it can hold?
  • How do different bases react in earthquakes?
  • What kind of sugar do yeast like to eat?

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