STEM Activities for Children: Simple, Fun Ideas to Try at Home
STEM activities for children don’t need to be complicated or expensive. In fact, some of the best learning happens through simple, everyday play.
Whether you’re at home, in the garden, or out exploring, these hands-on STEM ideas will help your child build confidence, curiosity, and problem-solving skills… without it ever feeling like “learning.”
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What is STEM and Why is it Important in Early Years?
STEM stands for Science, Technology, Engineering and Mathematics.
In the early years, it’s not about textbooks or formal lessons. It’s about:
Exploring how things work
Asking questions
Testing ideas
Introducing STEM activities early helps children:
Build problem-solving and critical thinking skills
Develop early maths and science understanding
Grow in confidence and independence
Prepare for school in a fun, natural way
12 Easy STEM Activities for Children
Here are some simple, engaging activities you can try with your little one using items you likely already have at home.
1. Building Towers
Stacking blocks may look like simple play, but it introduces important engineering concepts such as balance, stability, and structure. Children learn through trial and error, adjusting their designs until they succeed.
You will need
Wooden or plastic blocks (or cups/books)
A flat surface
How to get started
Encourage your child to build the tallest tower they can. Start with a short time challenge (e.g. 10–20 seconds) to make it exciting. When the tower falls, talk about why it happened.
Discuss ideas like:
Building a wider base for stability
Stacking evenly
What makes a structure strong or weak
2. Sink or Float Experiment
This classic activity introduces children to early science concepts like buoyancy and materials, while encouraging prediction and observation.
You will need
A bowl, bath, or container of water
A selection of objects (e.g. spoon, leaf, toy, stone, plastic lid)
How to get started
Before placing each object in the water, ask your child: “Do you think this will sink or float?”
Test each item and talk about the results.
Sort objects into “sink” and “float” groups after testing.
Ask questions like:
What do floating objects have in common?
Are heavier items always sinking?
3. Ramp Races
This activity introduces forces, motion, and gravity in a fun and active way.
You will need
A piece of cardboard, tray, or board
Books or blocks to create height
Toy cars, balls, or marbles
How to get started
Create a ramp and let your child roll objects down it.
Ask questions like:
Which one do you think will go fastest?
What happens if we make the ramp higher?
Top Tip: Try different surfaces (carpet vs wood) and compare results.
4. Nature Shape Hunt
A great way to combine outdoor play with early maths skills, helping children recognise shapes in the real world.
You will need
Paper and crayons (or a camera)
Outdoor space (garden, park, or walk)
How to get started
Go on a walk and challenge your child to find shapes such as:
Circles (stones, flowers)
Rectangles (fences, bricks)
Triangles (leaves, rooftops)
Record your findings by drawing or taking photos.
Count how many of each shape you find.
5. Colour Mixing Magic
This simple activity introduces basic science concepts while encouraging creativity and curiosity.
You will need
Clear cups or bowls
Water
Food colouring (red, blue, yellow)
Spoons or droppers
How to get started
Fill cups with coloured water and show your child how to mix two colours together.
Ask: “What do you think will happen?”
Watch as new colours appear.
Let your child experiment freely and create their own colour combinations.
6. Magnet Exploration
Magnets are a fun way to explore forces and materials through hands-on play.
You will need
A magnet
Household objects (coins, paper clips, plastic toys, wood, etc.)
How to get started
Test different objects to see which ones are magnetic.
Sort them into:
Magnetic
Non-magnetic
7. Plant a Seed
This activity introduces children to nature, growth, and responsibility.
You will need
Small pots or containers
Soil
Seeds (beans or sunflowers work well)
Water
How to get started
Help your child plant a seed and water it regularly. Place it somewhere sunny and check on it daily.
Talk about:
What plants need to grow
Changes over time
Top Tip: Track growth with drawings or a simple height chart.
8. Ice Rescue Challenge
A fun and sensory way to explore temperature and problem-solving.
You will need
Ice cubes or frozen blocks
Small toys (optional)
Salt, warm water, spoons
How to get started
Freeze toys in ice and challenge your child to “rescue” them.
Try different methods and ask:
Which works fastest?
Why do you think that is?
9. Shadow Play
This activity introduces light, shadows, and movement.
You will need
A torch or lamp
Toys or objects
A wall or sheet
How to get started
Shine light on objects to create shadows.
Encourage your child to experiment by moving objects closer or further away or changing angles
10. Sorting and Counting
A simple way to build early maths skills like categorising, counting, and comparing.
You will need
Toys, blocks, or household items
Bowls or trays
How to get started
Ask your child to sort items by:
Colour
Size
Shape
Then count how many are in each group.
Encourage your child to compare groups using simple language such as more or less and biggest or smallest.
11. Building Challenge
Encourages creativity, engineering skills, and problem-solving.
You will need
Household items (cushions, boxes, blocks)
How to get started
Set a simple challenge, such as:
Build a bridge for a toy
Create a den or house
Let your child experiment and adapt their design.
12. Water Play and Measuring
Water play introduces early maths concepts like volume and measurement.
You will need
Cups, jugs, spoons
Water
How to get started
Let your child pour water between containers of different sizes.
Introduce simple language such as full and empty, heavy and light, and more and less as your child explores.
Challenge them to fill one container using another.
How to Encourage STEM Learning at Home
You don’t need a dedicated classroom or expensive toys. Small changes can make a big difference.
Keep it simple
Everyday activities like cooking, bath time, and walks can all include STEM learning.
Ask open-ended questions
Instead of giving answers, try:
“What do you think will happen?”
“Why do you think that worked?”
Let them lead
Follow your child’s interests - even if it gets messy or doesn’t go to plan.
Celebrate effort, not results
STEM is all about experimenting and learning through mistakes.
Making STEM Part of Everyday Life
STEM isn’t just an activity - it’s a way of thinking.
You can build it into your daily routine by:
Talking about shapes, numbers, and textures
Letting your child help with cooking or measuring
Exploring outdoors together
Encouraging curiosity and questions
The goal isn’t to have all the answers. It’s to explore together.
Supporting STEM Learning at Nursery
At My Ohana, we bring STEM learning to life through play-based, hands-on experiences every day.
From building and construction to outdoor exploration and sensory play, our environments are designed to:
Spark curiosity
Encourage problem-solving
Build confidence through discovery
Ready to Give Your Child the Best Start?
If you’re looking for a nurturing nursery where your child can learn, explore, and thrive, we’d love to welcome you.
Explore our My Ohana nurseries or get in touch today to arrange a visit and see how we support your child’s development through play.
