How to Throw a Science Themed Birthday Party

How to Throw a Science Themed Birthday Party can be downright fun if given enough ideas.  Of all the Themed Birthday Parties they could pick, my twins chose a science party for their 7th birthday.  I’m pretty sure they thought we were going to blow stuff up, which factored into their decision.  We did make diet coke explode, we made snow, played with magnets, did an experiment with milk and food coloring and even learned about astronomy, geology and physics.  Plus, we had time to eat and open presents.  So, if you are wanting to throw a Science Themed Party, this post should give you plenty of ideas to get you started!

Science Themed Birthday Party


The super duper cute FREE printable invitation came from Living Locurto.  I just downloaded the printables and then adhered a sticker back to the “Open with Caution” printables to seal the invitations shut.  Interestingly enough, I mailed 15 invitations, and 3 were returned saying that they needed more postage.  I can’t figure out why.  They aren’t large or bulky.


Science Themed Birthday Party

For decorations, I had Tricia-Rennea design a Science Printable pack which included two banners, water bottle wrappers, cupcake toppers, place cards, science paper background and caution squares.

You can order the same set from her here for $12.95.   I also ordered a few pipettes, graduated cylinders and test tubes from American Science & Surplus.  They have great prices for the science materials and ship quickly, too.


Science Themed Birthday Party

I found  most of the ideas for experiments on the Muddy Princess Blog.  She threw a Science Party for her son and had lots of fun experiments and great ideas!

Science Themed Birthday Party

Each child was given a clipboard and pen to begin the experiments (they each took them home after the party, too).  Every scientist needs a clipboard, right?  I found mine at Walmart for just over $1.00 each.

Science Themed Birthday Party

Then, each child had to scan their hand in order to enter the lab.

Next they were given a little instruction, separated into groups and then sent off to their experiment stations.

Science Themed Birthday Party

Color Symphony Experiment – This experiment uses milk, food coloring and liquid soap.  The kids loved this experiment because the use of food coloring was fun and the end result was unexpected!

Science Themed Birthday Party

Drops on a Penny –  This experiment was a hit because the kids got their very own plastic pipette and they had to “hypothesize” how many drops of water their penny would hold.  After they made their guess, they “piped” drops of water onto their penny and got to see how close they were to their hypothesis.

Science Themed Birthday Party

Magnet Fun – For the magnet station I ordered donut magnets for the kids and let them experiment with different magnetic objects.  They had the opportunity to draw different objects provided and write whether or not they had a magnetic pull.

Science Themed Birthday Party

Space Station – For the station devoted the the study of space, I set out a bunch of books on constellations and planets as well as black construction paper and chalk.  I asked the children to look through the books and then draw a picture of their favorite planet or constellation.

Science Themed Birthday Party

Making Snow – Probably the most popular experiment involved making snow.  I bought fake snow at the drug store and let each child make their own cup of snow. All they had to do was add water so it was super simple, but they LOVED it.

Science Themed Birthday Party

Physics – Each child learned about physics in the bounce house.  What better way to learn that what comes up must come down than in a bouncer?

Cake & Cupcakes

Science Themed Birthday Party

Science Themed Birthday Party

I’m convinced that kids don’t care what the cake and cupcakes look like as long as they get one.  So, this year I baked a 4 layer cake (alternating layers, white and chocolate) and Jeff decorated it.  I now know why people buy cakes from bakeries.  They are a lot of work.  The cake was moist though, and I thought the custom science theme decoration looked suberb.  {{wink}}


Science Themed Birthday Party

We served pizza and fruit for lunch and had fun snacks like Ozone Oranges, Constellation Crackers, and Nerds in test tubes.

Party Favors

science party

The party favors were one of my favorite parts of the party.  Each child took home their clip board, pen, and their bag which contained:

  • a movie sized box of candy
  • marbles
  • a pipette of “snow”
  • magnet (used in magnet experiment)
The kids really seemed to enjoy themselves, and parents told me afterwards that their kids said it was tons of fun.  I think that it helped that there was a bounce house so that they got to work off some energy as well as do experiments so it wasn’t too “school-like” a party.  I thought it was a really fun theme!

And that’s How to Throw a Science Themed Birthday Party.

Other Parties/Ideas I’ve featured:

About Angie

Angie is a CRAFT dabbling, recipe making, WORD loving, sunshine hording, book DEVOURING, Mama to a lot! She's kind of in love with Instagram right now, so if you want her attention, go find here there. {smiling}


  1. Seriously Angie this is really awesome.
    Just reading it wanted me to take a nap.
    I would NEVER have that many people at my kids party but I guess with twins it’s only logical.
    I’m glad you got them and not me.
    I feel bad for my kids.
    I can make a mean cake but that’s about it.

  2. Everytime I think of something to write, I keep stopping at You Amaze Me.

  3. You pulled off another AMAZINGLY AWESOME party! The kids had so much fun 🙂

  4. Wow. You are amazing. I hope your kids know how awesome you are and their party was! I’m exhausted just thinking about all you had to put in for that party, but wow….kudos…brava…you rock…wow.

  5. WOW!! What an amazing party!! You were one busy momma!!