20 Science Activities for Toddlers and Preschoolers

20 Terrific science 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-based 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

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20 Science Activities for Toddlers and Preschoolers

colour laboratory

Colour Mixing Experiment for Toddlers and Preschoolers:

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.


Expanding Ivory Soap Experiment:

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

water displacement activity - happy hooligans

Water Displacement Experiment for Preschoolers:

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

salt glue and watercolour experiment

Art and Science with Salt, Glue and Watercolours:

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


Melting Ice Experiments for Preschoolers:

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

Enormous Homemade Bubbles Recipe:

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

grapes to raisins experiment

Turn a Grape into a Raisin:

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 Paint with 3 Kitchen Ingredients:

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

Ocean in a bottle

Create an Ocean in a plastic Jar or 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

Wax Resist Art:

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

Fizzing Colours - A baking Soda and Vinegar Science Experiment for toddlers and preschoolers - Happy Hooligans

Colourful Fizzing Baking Soda and Vinegar Science Experiment:

Kids LOVE the fizzing action that comes along with this colourful science activity. All you need is baking soda, vinegar and food colour or liquid watercolour.

How to make homemade butter in a jar

Turn Cream into Homemade Butter:

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

Water Absorption and Colour Blending Experiments for Toddlers and Preschoolers:

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.

More fun Science Activities for Toddlers and Preschoolers:

Check out these cool and creative activities for kids!

Get the 3-5 Playful Preschool e-Book!

25+ Preschool activities by 25 bloggers, 10 printables, PLUS 50 links to activities not featured in the book.

Click here to download your copy today

3-5 Playful Preschool 3-book


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