20 Science Activities for Toddlers and Preschoolers

20 Terrific science-based activities for toddlers and preschoolers. Great for home, daycare, the classroom or even for kids parties! Simple enough for toddlers and preschoolers, but fascinating enough for kids of all ages!

I’ve been sharing a lot of simple science experiments for kids on my facebook page lately, and the response from you guys has been terrific!

Wow!  Your children really love science, don’t they?

Well guess what!  I’ve rounded up a whole bunch of my favourite science activities for toddlers and preschoolers and put them right here, all in one place for you! Pin this post, or bookmark it, and you’ll have it handy any time you need a fun and easy science-based activity to do with your kids!


15+ Easy Science Activities for toddlers and preschoolers


20 Science Activities for Toddlers and Preschoolers


colour laboratory

Set up a colour laboratory with water, bubbles and an assortment of containers and fine motor instruments.  It’s a great way for kids to explore liquids, colour and colour mixing.



Watch a bar of Ivory soap expand to 6 times its size in a minute and a half!


water displacement activity - happy hooligans

A few rocks, a jar and a small toy animal are fun for teaching kids about water displacement.


salt glue and watercolour experiment

Kids can practice spelling their name or simply create stunning pictures with this salt, glue and watercolour experiment.



Watch and learn how salt helps to melt ice in the following FANTASTIC activities!  (Bonus:  They’ll all keep your kids busy for a good, long time too)



Giant Homemade Bubbles Science Activity

Kids AND adults will absolutely love blowing these GIANT homemade bubbles!  They really are the best bubbles EVER!


grapes to raisins experiment

Watch a the slow process of a grape turning into a raisin.  You’ll require a little patience, but it really is cool!


3 ingredient puffy paint

Puffy Painting:  Kids can watch their paintings go from flat to fluffy in a matter of seconds in the microwave.


Ocean in a bottle

Observe how oil and water behave together with an Ocean in a Bottle.  Your finished bottle will have a wonderfully mesmerizing and calming effect too.  Never a bad thing!



crayon resist cards

Through this beautiful, artistic process, kids can see how crayon wax and water resist each other.


homemade watercolour paints fb

Watch baking soda and vinegar react while you mix up a batch of homemade water colour disks. 



How to make homemade butter in a jar

Kids of all ages will get a kick out of making their own butter with nothing more than jar full of cream.



paper towel art

Learn about water absorption and colour blending with these simple experiments:



colouring daisies with food colouring

And lastly,  there’s this classic science experiment.  Dyeing flowers with water and food colouring.  I haven’t a post to go along with this photo of mine, so I’ll send you over to  Twig and Toadstool to see how they recently coloured a bouquet of rainbow daisies.

Check out these cool and creative activities for kids!

20+ Frozen-inspired activities, crafts, recipes and printables

25 Easy Art Techniques for Toddlers and Preschoolers

15 Homemade Paint Recipes for Kids

25 Water Play Activities

Get the 3-5 Playful Preschool e-Book!

25+preschool activities by 25 bloggers, 10 printables, 50 links to activities not featured in the book all for $8.99!

Download your copy today:

3-5 Playful Preschool 3-book


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  1. janelle says

    greta ideas, thanks for posting. Have a very recently turned two year old niece who is advanced for her age so these will attract her attention. It has everything i see language skill, math as well in these

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