Science and Technology for Kids: Cool Projects for Kids

May 5, 2021

Science and Technology for Kids: Cool Projects for Kids

Kids love science and technology. It's something they can relate to, and it's fun to see them learn new things.

So, if you've got a budding scientist in your family, or you simply want to keep your child interested in science, then you'll love the ideas in this post.

We've gathered kids science and technology projects, ranging from simple experiments to more complex projects that take some time to complete. With so many ideas, we're sure your child will have a blast learning about science and technology!

How to Choose the Perfect Project for Your Kid?

To understand a science topic, your kid must be involved in the entire project planning and making session. Let them do their decision-making, planning, and experiments.

As a parent, your duty should be to observe your kid from a distance and help them to understand the processes involved. Do not force your kid to do a particular project. Let them find their interest and help them grow.

It would develop your child's resourcefulness, problem-solving ability, and intellectual curiosity. And you, as a mentor and friend, would be a bonus point for their conceptual understanding and fun learning. 

We have listed the projects from various backgrounds like Biology, chemistry, physics, mathematics, etc. 

7 Cool Project Ideas for Kids

#1 Parachute Making


In general, if you allow an object to free fall from a certain height, it will fall immediately. But if you use a parachute, the landing time would significantly increase. 

Because of the pull generated by the wide surface area, parachutes float slowly to the ground. This significantly raises air resistance and helps the parachute to float to the ground slowly. 

The more weight you add to the cup, the further the parachute falls. This is due to the weight raising the cup's terminal velocity and counteracting the air resistance from the parachute. Now, let's make a fun parachute and find out how.

Material Required:

  • Plastic bag
  • Paper cup
  • Thread
  • Scissors 


  • Cut the plastic bag into big squares. 
  • Make holes on four adjacent sides of the surface of the paper cup.
  • Cut four equally measured strings say of 10-12 inches. 
  • Tie the cords around the plastic square's four corners.
  • Tie the other end of the strings with four adjacent holes on the paper cup.

 And your parachute is ready to fly! 

You can add various objects inside the cup to observe the speed of landing.

#2 Live Volcano Model


A Volcano is an opening through which hot melted earth rock erupts to the surface. After the eruption, they cool down and turn into hard rocks.

It is practically impossible to go near a volcano. So, why not make your volcano? 

Materials Required:

  • Empty plastic bottle (prefer big bottles)
  • Newspaper
  • Craft glue
  • Tape
  • Bicarbonate Soda
  • Vinegar
  • Food Colors: Red, yellow (optional)


  • Cut the plastic bottle in half and secure the base with Newspapers and tapes.
  • Cut newspaper strips, wet them in water, and paste them on the bottle's surface with glue. 
  • After it dries up, you can paint your volcano as well.
  • For making the magma put some bicarbonate soda into the Volcano model. 
  • In the final step, you will have to be very careful. As you pour vinegar into the cone, the chemicals react and create a frothing action like magma. 

You can repeat the final step as many times as you want your volcano to erupt. The frothing effect will fascinate kids and help them to know more about nature and geographical reactions. 

#3 Kaleidoscope Making


Kaleidoscope works on the principle of reflection of light. Since light moves in a straight line, as it collides with something, it changes direction. When you point the kaleidoscope into light, the light reaches the kaleidoscope and reflects back and forth between the kaleidoscope's polished surfaces.

Materials Required:

  • Cardboard
  • Three equally measured rectangular mirrors
  • Scissors
  • Tape 
  • Colors and sketch pens
  • Plastic straw


  • Begin with connecting the mirrors with tape to give them a prism-like structure.
  • Roll the cardboard cylindrically and secure it with tapes. Make its diameter equal to the width of the prism. 
  • Insert the prism inside the cardboard roll. You can paint the cardboard roll to give it a quirky look. 
  • Cut another circular piece of cardboard. Make sure that its diameter is larger than the cylinder's diameter. 
  • Make a hole in the circle's center and insert a plastic straw in the same space.
  • Decorate the circle with different colorful patterns. 
  • Secure the straw on the cylindrical roll with tapes. 
  • Your Kaleidoscope is ready to function. 

Peek inside the cylinder and shift the circular disc located on the other end to see different patterns. Any time you turn the disc, a new pattern appears.

#4 DIY Tornado


The main principle behind Tornados is The Centripetal Force. It is the type of force that drags any object or liquid toward the center of its circular paths. Tornado making will help your kid to understand more about natural disasters and what are their causes. 

Your child will enjoy doing this project the most because they can do it with their peers and brag about it.

Material Required:

  • A clear empty bottle (The larger the bottle is, the clearer would be the tornado)
  • Water
  • Glitter/ Liquid colors/ Sand


  • Fill almost 3-4th of the bottle with water. 
  • Put some glitter or color, or sand in the bottle. 
  • Secure the bottle tightly with its cap.
  • Twist it vigorously in a circular motion for some time. 
  • When you see the water whirling, you can observe the movement of the sand or glitter. That is the tornado. 

Each time you twist your bottle, centripetal force is being applied to the water, and it starts moving in a circular motion. 

Real-life Tornados can do severe harm to a village, city, or even an entire region.

#5 Home-Made Rainbow 


Rainbows are natural phenomena of refraction, an essential property of light and dispersion of light. 

Light consists of seven colors, but in the naked eyes, they are not visible. However, when it passes through the water droplets after a shower, the colorless light takes the form of a circular arc of many colors.

Even though there are many ways to make rainbows at home, but in this thread, we will use the most efficient and easy way to make a rainbow. 

Materials Required:

  • A Glass full of water 
  • White papers
  • Tape 
  • Flashlight 


  • Choose a dark room to conduct this experiment. 
  • Place some white sheets on the floor and put the glass full of water above the sheets.
  • Take another white sheet and cut out a small portion of it from its middle.
  • Secure the sheet with tapes on one side of the glass.  
  • Pass the light from your flashlight through the paper cut so that the light can strike the glass. 
  • Once you proceed with this process, you can see a rainbow on the sheets lying on the floor. 

Your kid can easily learn the process of refraction and dispersion through this experiment. 

#6 Electric Circuit Making


An electric circuit is made to study the flow of electricity and observe different objects' conductivity. Electric circuit projects are miniature forms of connections used in houses and offices to make electrical connections. 

Making an electric circuit is always a dream project for your kid as it helps them practically understand the complexities of physics. 

Material Required: 

  • A Battery
  • A cardboard
  • A small bulb 
  • Clip wires or aluminum foil wire with free ends


  • Secure the battery and the bulb adjacently on the cardboard.
  • For connection, stick a free end of the wire on the negative side of the battery and the other end with one connection of the bulb. Repeat this step for the positive side as well. 
  • When the wiring is done, the bulb will light up. 

Remove each wire to break the connection to understand the importance of a closed circuit. You can also use water and other conductors and insulators in between the circuit to understand their importance. 

#7 Friction Test


There works a certain amount of friction between the rice grains and the pencil. Your kid will be amazed to see that you can lift the bottle off the floor without the pencil falling off. You can also try this with other items and check if the pencil can hold them. 

Materials Required:

  • A clear plastic bottle
  • One funnel
  • Rice
  • One pencil


  • First, place the funnel inside the bottle with the bigger side on top. 
  • Now, fill the bottle thoroughly with rice so that it touches the funnel edge. 
  • Push the pencil straight inside the bottle.
  • Move the pencil a bit to adjust the friction.
  • Now try to lift the pencil without touching the bottle.
  • The bottle comes up with the pencil without slipping away.

If the pencil slips away, settle the rice in the bottle by tapping it on the table. And we’re sure it’ll work.

#8 Hydrophobic Sand


It is a great fun project for kids. The water-repellant fabric protector is coated on the sand, which keeps it in shape together underwater. The water-repellent fluid creates a layer around the sand and prevents it from getting wet.

Materials Required:

  • Different colored sand
  • Fabric protector (should be water repellant)
  • Disposable container or plate
  • Fan
  • Plastic spoon
  • One clear plastic cup
  • Water


  • First, pour in some colored sand in the disposable plate or container. 
  • Moisten the sand with the fabric protector.
  • Mix up the sand and fabric protector with the help of a spoon.
  • Now, spray another coat of fabric protector on the moist sand.
  • Now let it rest and dry for a few hours in front of a fan. You can use the spoon to stir the mixture so it is evenly dried up.
  • Once the sand is dry, fill a plastic cup with water.
  • Now, pour a scoop of the sand mixture into the water and wait.
  • Observe your hydrophobic sand.

You can also preserve the hydrophobic sand for enjoying it later again.


Science projects add up to your child's overall development. But being there with them and teaching them complex processes can add to their confidence about the topic. We advise you not to let your kids do the projects alone and keep an eye on them.

On various projects listed above, there are harmful substances like mirrors, vinegar, soda, etc. Therefore, try to involve them as they proceed, but that should not be confused with interference. 

Patsy Todd

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