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Steve's Birthday Party Science Kit

Create an awesome science birthday party experience for your kids.

  • Steve's Birthday Party Science Kit
    Item #: WPTY-500

    $199.99 In Stock

Usually ships out the next day.

Recommend for 6 years & up with adult supervision.

DOTD Sold-Out

Are you looking for kids birthday party ideas and have exhausted the bowling parties, sleep-overs and bounce castles? Do you want an all-in-one themed birthday party kit that includes action-packed activities, party favors and activity guide? Then this is the party kit for you! Invite your favorite 15 mad scientists, decorate the lab and we'll help you create the coolest girls or boys birthday party ever.  From slippery worms, to gooey Slime, to instantly fluffing snow, we’ve got your amazing science birthday party covered.

Recommended for children ages 6 and up.

Includes enough materials for 15 guests, including the birthday child

What's included?

Click to enlarge

  • Insta-Worms Kit
  • Clear Slime Kit
  • True Colors Color Mixing Tablets
  • Water Jelly Crystals, 100 grams
  • Glow Powder
  • 5 Mini Black Lights
  • 15 Pairs of Safety Glasses
  • Insta-Snow, 100 grams
  • 15 Insta-Snow Test Tubes
  • 30 Slime Shaker Cups with Lids
  • 15 Baby Soda Bottle Test Tubes
  • And, for a limited time only, you get 15 Geyser Tubes™ featuring the Fountain, Fan, and Runaway caps at no extra charge

How does it work?

Check out our party planning section for even more ideas and even free invitations for you to download!

Product FAQ

Warning - Choking Hazard

6 yo birthday party

Caroline C.    -  September 2, 2012

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This user gave 5/5 stars


We had 18 kids ranging in age from K to 3rd mesmerized for over an hour. There were even a few older brothers and sisters who couldn't resist trying out a few things. ( making slime is impossible to resist at any age). The Water jelly crystals made four gallon sized bags, we used one of them, so we could have used less water or fewer crystals and been good. Since we had a few unexpected guests we gave each family a geyser and snow tube and everyone seemed happy. There was lots of left over snow, and there is plenty of slime even for several accidents. The worms are a great starter, there is more than enough that the kids don't mind giving up the bottle of worm goo and just reaching in to squeeze other people's creations. It also warms them up for more mess to come. The initial hesitations- am I really supposed to reach in there-faded quickly. It is good to have a large stack of towels on hand. And everyone was delighted by they geysers, even the most hardened high school student cracked a grin. I saw them!

7 year old bd party

Natalie    -  June 17, 2012

1 2 3 4 5
This user gave 4/5 stars


The kids has great fun with most of the expirements. The snow was a big hit as well as the worms. The slime did not work as well as it should have and the shaker cups leaked pretty badly. The diet cola and mentos was certianly the hit of the party.
It would be helpful if the online information had discussed more clearly what was in the kit and the directions were stated. I would probably have elected to purchase items seperately rather than in the kit.
All in all it was a great party and the kids had lots of fun.

The best party EVER!

Amanda Guerrero    -  February 20, 2012

1 2 3 4 5
This user gave 5/5 stars


Thank you so much for putting this party kit together, I just had a Mad science party for my 8 year old son and it was amazing. This kit was perfect and the experiments worked perfectly! I cannot even begin to tell you how wonderful it was to see so many smiling faces when each experiment worked exactly as described. The instructions that accompanied this kit were well written and easy to follow. The kids could not stop smiling and all I kept hearing was "can we do that again?" even the parents wanted to participate! Thank you again and I will be recommending your website to anyone looking to have this type of party!

3 times Thank You!

Staci F. from TX   -  May 16, 2011

1 2 3 4 5
This user gave 5/5 stars


I ordered the mad scientist party kit for my son, Max's 6th birthday party. WOW! It was awesome! Kids & parents had fun with it!!! Thank you! Thank you! Thank you!

Great Party Kit... But...

Hedyeh G.    -  May 15, 2011

1 2 3 4 5
This user gave 4/5 stars


So we just used this kit for my daughter's 6th b'day party. Over all, everything was great, however there are a few things I wish were better.
1.) The instructions weren't always very clear. Also, in some cases when it recommends using the ENTIRE contents (water jelly crystals and glow powder) it turns out to be way too much and could have achieved better results by only using a smaller portion of what is provided. I'm waiting for an entire tub of this stuff to dehydrate for future use!
2.) The slime kit lids were too flimsy and caused many leaks and a bigger mess.
3.) The slime ingredientsinstructions did not create slime, rather a hard blob in colored liquid that would break apart instead of stretch as you would expect slime to do.
4.) I wish the kit also included disposable lab coats for participants along with measuring tools.
5.) the Geyser tubes didn't all work properly, 23 malfunctioned with mentos getting stuck.
Aside from these issues, the participants all really had fun and enjoyed learning and making ooey gooey stuff. I particularly appreciated the scientific explanations that were also included in the instructions.

Hedyeh -
Thank you so much for the extensive review. We are glad that, overall, you enjoyed the kit very much. I want to assure you that the issues you had are to be taken into consideration. Again, thank you very much.
- Steve Spangler Science Web Team

Amazing Birthday Party

Kristi C. CO   -  May 5, 2011

1 2 3 4 5
This user gave 5/5 stars


Yesterday we had the best birthday party-a Steve Spangler Mad Scientist party! One of my parents found your birthday kit online and asked if we could do it at school. Of course I said, "Absolutely!!!!" The kids had a wonderful time!!! I will have to post pictures later! The best activity was the finale-12 soda bottle pop geysers going at once. You should have heard the kids scream!!! Thanks, Steve! You make science a blast-literally!

Made my party a huge hit

Praveen    -  March 9, 2011

1 2 3 4 5
This user gave 5/5 stars


I purchased the Steve Spangler science kit for my kids birthday a party. To say the party was a hit would be an understatement. The kids loved the instant snow powder and also the glow the dark water absorbing crystals. In fact it wasn't just the kids, even the adults at the party were excited about it. The kit provided the kids an opportunity to get down and dirty with science. All in all great times were had by everyone at the party.

Fantastic Kit

Stacie    -  November 22, 2010

1 2 3 4 5
This user gave 5/5 stars


This kit is AWESOME! My daughter's 9th birthday party was the best! 17 girls (and one boy) had so much fun! They were screaming for more! I had to console them that they were getting stuff to take home with them....... Absolutely fabulous! We want to do it again next year! Thank you Steve for awesome products! Easy to use and easy to clean up!

Steve On Ellen

Cara Winter Springs, FL   -  July 6, 2010

1 2 3 4 5
This user gave 5/5 stars


Ever since my son saw Steve on the Ellen Show forever ago he has been insistent that his next birthday be MAD SCIENTIST! I just ordered my supplies from your website and know his 6th birthday will be wacky, yucky, and memorable.

I'm the cool Mom (at least for a few more days)

Jennifer Peterson    -  May 21, 2010

1 2 3 4 5
This user gave 5/5 stars


My son's 8th birthday party was amazing! The whole kit is very high quality and I was very impressed with the instructions too! I did have a question about something and called customer service about 45 min. before the party... DJ was so helpful and very knowledgeable!

Best party ever!

Katie Wylonis    -  May 14, 2010

1 2 3 4 5
This user gave 5/5 stars


The instructions were easy and the experiments were fun. My now six year old and his friends have been talking about it all week. The laughter as the insta-snow expanded in their hands was priceless and the mentos geyser was great fun. They loved it all and the kit made it easy to plan.
Plus,the pictures of kids in safety goggles are priceless!

Great Birthday Party

Melissa via Facebook   -  May 13, 2010

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This user gave 5/5 stars


 

Had the best Steve Spangler birthday party for my 6 year old this weekend! Thanks Steve for making science so much fun! The birthday party kit was perfect!

Best Party Ever

Erin Gaver Port Orange, Florida   -  January 26, 2010

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This user gave 5/5 stars


I recently purchased the Yuck Bucket and a few other experiments from your website. This was all done for my son's 11th birthday party, he is a true science lover. I had a group of 6 boys ages 10 to 11 on Saturday to my house for this science party. All the boys had great fun with the experiments. This was said to be the best party the boys had ever been to. I have told several people of your company in the last few days. What, who knew science could be such fun? I won the award of greatest Mom. So I must give credit where credit is due and that is to Steve and his crew. Thanks!!! Sincerely, Erin Gaver

Great Stuff for Birthday Party

Lori McLamb Jacksonville, FL   -  January 2, 2010

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This user gave 5/5 stars


We just had my son's 7th birthday party outfitted by Steve Spangler Science. It was a huge hit and very easy to pull off. Fake snow, slime, smoke ring blasters and Coke bottle geysers. Thank You for the ultra-cool, original, economical birthday party ideas!!

Best Birthday Party EVER!!!!!!

Sarah Michel Colorado Springs, Colorado   -  November 1, 2009

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This user gave 5/5 stars


My 12 year old daughter can't stop smiling and saying, "This was the BEST birthday party EVER!" The lucky 14 other kids said the same thing. We did several of the projects in the kit and even had a few to send home in gift bags as a bonus. Steve actually showed up as a surprize and we exploded stuff in the front yard! It was AWESOME! If you want to be "the best parent ever" plan on Steve's Party in a box for your next party!!!

Created an amazing day for my son.

Jeff Safety Harbor, FL   -  August 25, 2009

1 2 3 4 5
This user gave 5/5 stars


You guys have thought of everything in this kit. I read the instructions, admittedly the night before, and they were very thorough and even broke the activities into time blocks. This was great. I could budget the time with the kids on the science activities, cake, and presents. The best part for me as a parent is that I really think the kids learned some science between the oohs and aahs. Nice job with this kit.