Ages 7 to 12+ · 3 projects a month · free shipping

Monthly STEM boxes for ages 7 to 12+

Three hands-on projects and three science lessons every month, with all supplies pre-portioned and included. Over 100 different projects and experiments across a vast array of topics, and we are always adding more.

Choose Your Subscription
  • From $29.92/mo
  • Ages 7 to 12+
  • NGSS aligned
  • Free shipping
An excited girl in a yellow shirt at a kitchen counter, mouth open in delight, a jar and her project supplies in front of her and a blue STEM Discovery Box beside her
3 projects + 3 lessons per box All supplies included, even batteries From $29.92/mo on the annual plan Cancel anytime

Choose your term

Pay per month, or take a 3, 6, 9 or 12-month plan. Longer terms save more, and shipping is free on every plan.

  • Month-to-month $37.95per month Choose
  • 3 months $109$36.33/mo Choose
  • Most popular 6 months $209$34.83/mo Choose
  • 9 months $289$32.11/mo Choose
  • Best value 12 months $359$29.92/mo Choose

Checkout opens with Subbly, our subscription partner. You will review your plan and shipping before you pay. Cancel anytime, no fee.

Every monthly box includes...

A sample of one of our boxes.

  1. A STEM Discovery Box with a built solar system model, bouncy balls, paints and engineering straws laid out around it

    Three activities

    Three activities per box, each on a different science topic.

  2. A graphic headed "All supplies included!" showing three panels of pre-portioned supplies: paint, model, brush and sandpaper; polymer crystals, mold and cup; and 75 straws with 75 connectors

    Nothing extra to buy

    No extra trip to the store.

  3. Three printed STEM Discovery Boxes lesson cards fanned on a wooden table, each showing photo instructions and the science behind a project

    Science lessons

    Step-by-step photo instructions along with age-appropriate educational science lessons.

  4. A YouTube video still showing a presenter demonstrating a glow-in-the-dark STEM Discovery Boxes project

    Video lessons

    Explore your projects with instructional videos by k-8 teacher Mike R. @ThatSTEMGuy, and viral YouTuber Jake Makes.

Why parents love it

Fun for kids. Effortless for parents.

Screen-free learning that keeps kids engaged, sparks curiosity in science and problem-solving, and brings back nostalgic, hands-on experiences in a digital world. It is quality time together that is easy and exciting.

It builds confidence, creativity and curiosity, the "I made this" moment, while fostering independence and still being kid-friendly. It supports school success by making learning feel like play, and it works for homeschool, after-school or enrichment.

What sets us apart

Six things that make the box different

  • We include THREE projects each month

    Not just one or two. Every box is three separate projects covering three different topics.

  • All supplies included, even the batteries

    Pre-portioned and no-prep. Nothing to gather, nothing to buy, no last-minute store run.

  • A variety of STEM topics

    Over 100 projects in our vast inventory across chemistry, physics, astronomy, electronics, motors, hydraulics, coding, biology, earth science, paleontology, anatomy, geology, weather, botany and more.

  • Eligible for many scholarship and grant programs

    Funded families and schools can use education funds with us, and we provide the documentation programs ask for.

  • Free how-to video library

    Project videos by K-8 STEM teacher Mike R., @ThatSTEMGuy, and viral YouTuber Jake Makes.

  • Aligned with academic standards

    NGSS, Common Core and more, so the science integrates with what is already being taught.

A sample of what is inside

What kids actually build

  • Hydraulic Claw

    Explore hydraulics and Pascal's Principle by engineering your own water pressure-powered mechanical claw. Ages 7 to 12+.

  • CO2 Rocket

    Have a "blast" launching your own mini rocket while learning about chemical reactions and thrust. Ages 7 to 12+.

  • Light-Up Terrarium

    Create your own light-up terrarium while learning about ecosystems, the water cycle, photosynthesis, and botany. Ages 5 to 12+.

  • Optical Illusion

    Create a floating 3D image and colorful spinning tops while exploring how optical illusions trick your brain. Ages 5 to 12+.

The list goes on

More of what kids build

Build a remote control elevator. Explore with glowing worms. Learn how to build a color-changing fiber optic lamp. Race robotic bots. Assemble a pumping heart. Experiment with a foaming fountain.

Chemistry, physics, astronomy, electronics, motors, hydraulics, coding, biology, earth science, paleontology, anatomy, geology, weather and botany, with over 100 different projects and experiments and more added all the time.

In their words

What families say

  • My son loves his STEM Discovery Box

    Each month brings 3 hands-on projects we do together: fun, educational, and age-appropriate. The experiments have become one of our family's favorite activities.

    Keith H.

    Customer review shared with STEM Discovery Boxes

  • These boxes are amazing

    My students were fully engaged and couldn't wait to explore each project. Clear directions, awesome results, and tons of learning packed into every box. Highly recommend.

    Mrs. Smith

    Customer review shared with STEM Discovery Boxes

  • Almost better than Disney

    Got this for my grandson and he said the only thing better would be Disney. He's made VR goggles, a hydraulic claw, and more. Creative, exciting, and absolutely worth the money.

    Linda C.

    Customer review shared with STEM Discovery Boxes

  • Perfect gift for curious kids

    My daughter built glowing bouncy balls and a VR viewer, all by herself. Easy-to-follow instructions explain the science behind the fun. We can't wait for next month.

    Amanda L.

    Customer review shared with STEM Discovery Boxes

  • Science for the whole family

    Our grandkids look forward to every delivery. The experiments are fun for all ages, even grandpa joins in. It's the best bonding time and an incredible way to make science exciting at home.

    Nana P.

    Customer review shared with STEM Discovery Boxes

Start your subscription

From $29.92/mo on the annual plan. Free shipping, cancel anytime.