Science Experiments for Kids

Science Sparks is full of easy and fun science experiments for kids to do at home. Our fun science investigations include engineering, coding, biology, chemistry and physics experiments.

Learn more about the wonderful world of science by trying our exciting science experiments, cool facts, free printables, photos and videos. We’ve also got a great collection of STEM projects, STEM Challenges and science fair projects.

Our science experiments include removing the shell from an egg, launching bottle rockets, create edible life cycles, making lava lamps and lots more science experiments for kids of all ages.

Age 4 - 6 | Early Years Science | Human Body Science | Human Health and the Immune System | Humans and Health | Preschool Science | Science Experiments for Kids

Science Experiments for Learning about the Human Body
ByEmma Vanstone March 17, 2021October 2, 2022

This collection of science experiments for learning about the human body is perfect for encouraging kids to learn about their bodies! I’ve split the ideas into three age groups: preschool, primary age ( 5-11 ) and secondary ( 12+) but these are very loose recommendations. Hopefully you’ll find something that sounds fun to try! I’ve…

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Kitchen Science | Science Experiments for Kids

Why does toast land butter side down?
ByEmma Vanstone March 15, 2021March 15, 2021

How many times have you dropped a piece of toast and found it landed butter side down, leaving a smear of butter on the floor? Is it just bad luck or is there a reason the toast lands that way? Why does toast land butter side down? One theory as to why toast lands butter…

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Inspirational Women in Science | Science Books for Kids | Science Experiments for Kids

Great Books About Women In Science
ByEmma Vanstone March 8, 2021May 21, 2025

As a mother of two daughters ( and two sons ) and someone who has always loved science, I am passionate about educating all my children about how women have been responsible for many of the world’s most groundbreaking scientific discoveries. Books are a wonderful way to learn about inspirational women, so I’ve pulled together…

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Age 7 - 10 | Plants | Plants | Science Experiments for Kids | Spring Science Experiments

3D Flower Model – Plant Science
ByEmma Vanstone February 27, 2021May 6, 2026

We’ve dissected flowers many times before, but this was our first attempt at a 3D flower model. A model is a great hands-on way to learn about the structure and function of plant organs and the importance of pollination. I’ve also made some FREE flower structure revision cards you might like. 3D Flowering Plant Model…

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Science Experiments for Kids

What is Refraction?
ByEmma Vanstone February 22, 2021March 23, 2023

Refraction is the bending of light. Light bends whenever it travels from one transparent material to another. One example of this is light travelling through a glass. The reason light bends when it passes between two materials is because it changes speed. If the new material is more dense ( for example air to glass…

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Light | Light Experiments | Physics | Science Experiments for Kids | Science Through Stories

Reversing Arrows Experiment
ByEmma Vanstone February 22, 2021February 7, 2022

We’ve done this light refraction experiment many times before, but this time it’s Alice in Wonderland themed. A reversing arrows science investigation is very easy and can be made as simple or creative as you wish. If you don’t want to theme it like I have below, just draw arrows on a small piece of…

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Age 7 - 10 | Design and Technology | Easter Science | Science Experiments for Kids

Crash Test Eggs Challenge
ByEmma Vanstone February 18, 2021March 24, 2026

I’ve got another easy EGG themed STEM Challenge for you today! It’s a bit of a twist on the traditional egg drop experiment. The challenge is to build a car using K’Nex or another construction toy to save an egg passenger. This is a brilliant egg experiment, that’s great for any time of year, but especially Easter!…

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Age 7 - 10 | Animals, Including Humans | Early Years Science | Egg Experiments | Egg Experiments | Human Body Science | Human Health and the Immune System | Humans and Health | Kitchen Science | Science Experiments for Kids | Understanding of the World

Tooth decay experiment with egg shells
ByEmma Vanstone February 12, 2021July 4, 2025

This fun tooth decay experiment with egg shells is all about teeth and how to keep them healthy. First, we discussed the importance of brushing teeth every day, and then we chatted about foods that are good for your teeth and those that aren’t. Sugary, sticky foods are not good for teeth as they stick…

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Chemistry | Kitchen Science

The Science of Pancakes
ByEmma Vanstone February 11, 2021March 4, 2025

One of the easiest ( and tastiest ) ways to introduce science at home is in the kitchen. If you’re a regular reader, you’ve probably already seen my huge kitchen science experiment round-up post, full of simple, tasty, and educational ideas for science in the kitchen. Pancakes are a great way to learn about how…

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Egg Experiments | Egg Experiments | Kitchen Science | Magic Science Experiments

Make an Egg Float
ByEmma Vanstone February 10, 2021May 5, 2023

Fresh eggs sink, and older eggs float. Eggs have air cell that becomes bigger as they age. Once the air pocket is big enough to make the egg less dense than water, the egg floats!! Another way to make an egg float is to increase the density of the water the egg is in! Once…

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