STEP 1
Ready when you arrive
The lab is decorated, the birthday kid's name is up on the big screen, and every kid gets a lab coat and goggles. The birthday scientist gets a special badge.
Reaction Lab birthday parties
Slime birthday parties
Every kid makes slime, in real lab coats and goggles, in a lab that's all yours for the party.
Reaction Lab hosts private slime and science birthday parties for ages 4 to 12 in Atlantic Highlands, NJ, from $695 for 12 kids.
From $695 for 12 kids. Book online in minutes.
A family-run lab in Atlantic Highlands, NJ.
How the party goes
STEP 2
Three hands-on experiments
Bowls and materials are set at every seat. A party scientist walks the kids through each experiment, and every kid takes something home. Acidic and Reactive add an extra.
STEP 3
Pizza and juice
Hands washed, lab coats off, then pizza from Chiafullo's here in Atlantic Highlands and organic juice boxes. Gluten-free pizza, chicken fingers and food for the adults can be added.
STEP 4
Cake and candles
We set up a cake table for your cake or cupcake tower. Candles, Happy Birthday, and plenty of photos.
STEP 5
No rush at the end
Take your time with goodbyes. We clean up after you head out.
Every theme has its own slime
Three experiments and a take-home, not just one slime.
Your child picks the theme. Each one comes with its own slime.
Birthday Cake Slime
Polymers & Reactions
Best for ages 4-12
Jurassic Slime
Dino Dig & Fossil Fun
Best for ages 4-7
Glow in the Dark Slime
Magic Potions & Bubbling Brews
Best for ages 5-12
Magnetic Slime
Build It, Break It, Make It Move!
Best for ages 9-12
Built around their favorite things
With the Reactive package, the party is built around your child's favorite things.
Choose your party package
Every party: up to 12 kids ($25 per additional child), a dedicated Reaction Lab scientist, lab coats and goggles, pizza, and complete setup and cleanup.
Basic Lab Package
- 3 engaging experiments from your chosen theme
- 1.5 hours of exclusive use of the Reaction Lab space
- Party setup with white plates and napkins
Acidic Lab Package
- Science party decorations
- Balloons in your choice of colors
- A surprise experiment the birthday scientist leads for the whole party
Reactive Lab Package
- For families who want a party built around their child's favorite things!
- 30 extra minutes in the lab (2 hours of exclusive use in total)
- Decorations in any theme you choose: princesses, superheroes, outer space, anything your child loves
Party FAQs
What ages are best for parties?
Our parties are designed for ages 4-12. Each experiment theme has a recommended age range to help you choose.
What about food?
Every package includes pizza for the kids, plus water and juice boxes. You bring the cake (or cupcakes, ice cream cake, etc.). We can also arrange catering for adults.
Can I drop off my child?
Drop-off is permitted for kids 8 and up. At least one supervising adult must remain for the duration of the party.
How far in advance should we book?
Weekend slots typically fill 1-2 months out. We recommend reaching out as early as possible, especially for popular dates.
What's your cancellation policy?
A $200 non-refundable deposit secures your date. See our refund policy for full details.