Here at Science Sparks, we love LEGO®. My children play with LEGO® or DUPLO® every day, and it’s been fantastic for helping them develop fine motor control and logic skills and for learning to read and understand instructions. We use LEGO® for building, making up imaginative stories, and, of course, for experiments and investigations. These are some of our favourite science ideas with LEGO®.
Easy Science Ideas using LEGO®
Learn about bar charts using some sweets and DUPLO. You could make a smaller version of this with LEGO too.
Make a LEGO/DUPLO bridge and find a way to test how strong it is.
Find out how fast different types of paper absorb water to reveal a hidden LEGO man.
Use LEGO/DUPLO to make a ramp and explore how different gradients affect the speed of cars.
Set up a fun LEGO excavation like Lemon Lime Adventures.
Or how about a LEGO catapult like this cool one from Frugal Fun for Boys
Have fun learning to count and measure using DUPLO in this great post from The Imagination Tree
Make a Numeracy at Home box and add some LEGO bricks for counting, comparing size etc.
How fast can you get a LEGO balloon powered car to travel?
Can you make a LEGO or DUPLO metre ruler?
Discover how many LEGO bricks tall you are in this simple activity.
Hide a LEGO man in ice and explore how to rescue him.
Will a LEGO man float on oil or water?
Work on your memory skills with this fun Guess Who game.
Can you make a stable structure. We used sweets in this post, but it would work just as well with LEGO.
Investigate how waterproof different materials are by using them as a roof and spraying with water.
More ideas for learning with LEGO®
We reviewed some great DUPLO sets from LEGO Education recently, and I cannot recommend them enough. I also bought my 7 year old a set of LEGO Education Doors, Windows & Roof Tiles
What’s your favourite way to play with LEGO/DUPLO?
Last Updated on April 2, 2025 by Emma Vanstone
My kids LOVE Legos so any new ideas are welcome! Thanks!
I really liked this website, I like the expirements.