3-4 Year Olds

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Three and four year olds is the age range often called “preschoolers” or “kindies” in Australia, and it’s such a great age for fun and simple science activities – at preschool, at kindy, or at home!

Science Activities for 3-4 Year Olds

We’ve done lots of fun science (and STEM) projects that are age-appropriate for preschoolers at our place. We’re also adding more activities to this page as we try them, so pop back regularly to find our latest ideas! Or you might like to subscribe to receive fun science ideas via email.

Fun Science and STEM Activities for 3-4 year olds

Fun Science Ideas for 3-4 Year Olds

Want even more preschooler science activities?

If you are looking for MORE science ideas for preschool aged kids, you might also like:

LOTS of fun science & STEM ideas for 3-4 year olds, from Go Science Kids

Want even EVEN more ideas?

You could check out the ideas on our Science for 1-2 Year Olds page – minor variations can make many of these ideas still fun for an older age group. (My kids always like repeating experiments and activities that they did when they were younger – they just tend to play with it in a different way.)

We also have a Science for 5-6 Year Olds page – preschooler aged kids will likely need help from an adult for most of these ideas though.

All these and MORE are pinned on my Fun Science for Kids Pinterest board.

Which of these science activities do you think your 3-4 year old might enjoy?


Please note…

All kids’ activities on this blog require attentive adult supervision. Parents and carers will need to judge whether a particular activity is appropriate their child’s age and skill level. Click here for more information.


  1. Amie

    Wow! There are so many great ideas to visit and try on this page! I’m pinning this so I can come back.

  2. Holt

    Looks like there are cool ideas here but none of the “read more” links seem to work.

  3. Jackie

    Thank you so much! These are so well written, the pictures are great to help follow along and I really appreciate you putting a little bit of the science explanation with them.


    • Thanks Jackie, I’m so glad you like them!


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