Mar 2

Science Experiment For A 5 Year Old


Noble has taken an interest in science.  This is great because there are a vast array of science questions that I, myself, need answered.  Questions that would have me put in the category of “total moron” if I were to express my ignorance in public.  For instance, what is density? What fool doesn’t know that? I didn’t. Or what the hell is an amp or an ohm?  Or how do you trap a quantum particle in a box?  You know, questions that anyone using a measly 11% of their brain could tell you.

But I am picking it all up now.  I can use my 5 year old to get the answers I need!  I disguise it as a “science experiment” and little does he know that I’m not just explaining something that his amazingly smart dad already knows, but I’m actually learning it as well! And I’m using the fact that I have a comprehension advantage of about 5 seconds over Noble to play it off as if this science knowledge is something I already knew!  Science THAT!

Here is one of the experiments that we did, that Noble loved.

The Floating Egg:

What you need: a glass, a bunch of salt, and an egg.

What you do:  fill the glass up with water.  Put the egg in the water and watch it sink.

Ooh and aah about how the egg sinks, and then remove it.

Load that glass up with a bunch of salt.  Stir the salt around.  NOW put the egg in the glass.  It FLOATS!

Your child may not be interested in the science when you tell him that “because the egg is denser than the water, it sinks.  But because the salty water is denser than the egg, that’s why it floats!”

Density...or MAGIC!

So if your child doesn’t care about that, then tell him it was magic.  He’ll be amazed at your super powers.

If your kid IS interested in the science, then here’s the handy dandy webster definition of density I used to throw in Noble’s face to make me sound REALLY smart:

Density – the mass of a substance per unit volume.  (And then when my son asks me what THAT means, instead of looking up the words “mass” “substance” “unit” and “volume” and trying to piece together a 5 year old version of it all, I just look at him, smile, and say, “it means it the egg floats in salt water” And then when he says, “But why” I tell him, “Density!”  And then he’ll ask what density is, and we’ll have ourselves a never ending explanation loop that can only be stopped by offering chocolate milk.  So make sure you have that handy.

If you have a cool science experiment that you do with your kids, share it in the comments section, and Noble and I will do it!  We loves us some science!


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  • nelle

    The mentos in the bottle of diet coke never gets old for my kids. Find a sale and load up.

  • Kristin @ Preschool Universe

    Ah…the never ending explanation loop. Couldn’t have described it better.

  • Russ Jones

    Thanks Kristin! It is an exhausting place to be, for sure.

  • Russ Jones

    Mentos in a bottle of soda? That sounds awesome. I’m off to google that!

  • Pingback: Preschool Science Activities: Egg Experiments

  • Arthur Kelly

    I tried the cloud in a bottle, with my kids, but it never worked out. Going to try this updated version with my 6th graders soon:

  • Russ Jones

    Cloud in a bottle?! That sounds cool! I haven’t seen the video yet, but I will guarantee that Noble and I are going to try this! Thanks for the comment, Arthur!

  • Mistimtn

    I loved this! Thanks! I’m a homeschooling mom who is always looking for fun stuff for my kidos. boys ages 7,5, and girl 4.

  • Russ Jones

    Thanks so much Mistimtn! You definitely seem to have your hands full!

    There are a couple of sites that I LOVE, that I get many ideas from, and so I’ll pass the knowledge on to you:

    1) Preschool Universe
    2) All For The Boys

    Thanks for stopping by and dropping a note! :)