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STEMKits

What's inside a STEMKit?

3-in-1 Experiment Kits

Each STEMSeeds kit is hand-designed and carefully packaged by our team to provide engaging, hands-on learning experiences. Explore motion and movement with our three classic engineering projects: a paper rocket, a pom-pom catapult, and a robotic hand! All materials are hospital-safe, free of latex and sharp objects, ensuring a fun and safe experience for all children. Each experiment also includes an easy-to-follow educational flyer which we personally designed that explains the science behind the activity, helping students connect what they build to real scientific concepts.

See the experimentsSponsor a kit
Open kit boxes filled with instruction manuals and pencils
A sealed STEMKit box wrapped in Where Learning Takes Root tape
Manuals, educational flyers, and health cards laid out for kit assembly

The Experiments

Three projects, one kit

Breath
  1. 1Press and hold the green dot on the straw
  2. 2Keep holding to fill your breath
  3. 3Let go to launch the rocket!
Difficulty: Easy

Paper Rocket

Launch a rocket into the air while learning about physics!

How to build it (7 steps)
  1. 1Fold the construction paper into fourths and cut along the folds.
  2. 2Wrap one rectangle around a straw to form a cylinder.
  3. 3Close the cylinder with tape so it doesn't come apart, then take the straw out.
  4. 4Pinch one end to make the nose and tape it shut.
  5. 5Fold another rectangle in half and cut out triangles to make fins.
  6. 6Tape the two fins to the bottom end of the cylinder.
  7. 7Place the rocket on the straw and blow!

Pictures from the manual

Paper Rocket instruction manual, page 1 of 3Open page 1Paper Rocket instruction manual, page 2 of 3Open page 2Paper Rocket instruction manual, page 3 of 3Open page 3
Download the full manual (PDF)
  1. 1Grab the green dot on the popsicle stick
  2. 2Push it down (farther = more power)
  3. 3Let go and watch it fly!
Difficulty: Medium

Pom-Pom Catapult

Fire a pom-pom into the sky by building a pom-pom catapult!

How to build it (8 steps)
  1. 1Place both paper cups upside down.
  2. 2Cut your straw into two pieces about the same length as the diameter of the cups.
  3. 3Tape one straw piece to the top of each cup.
  4. 4Insert the skewer through both straws.
  5. 5Fold the paper in half, keeping it at a 90-degree angle.
  6. 6Tape the paper to the popsicle stick.
  7. 7Tape the popsicle stick to the skewer.
  8. 8Load a pom-pom into the paper, then push down on the other end of the popsicle stick to launch!

Pictures from the manual

Pom-Pom Catapult instruction manual, page 1 of 3Open page 1Pom-Pom Catapult instruction manual, page 2 of 3Open page 2Pom-Pom Catapult instruction manual, page 3 of 3Open page 3
Download the full manual (PDF)
  1. 1Grab the green dot at the bottom of the strings
  2. 2Pull it down to close the fingers
  3. 3Let go and watch the hand open again
Difficulty: Hard

Robotic Hand

Build a moving robotic hand and discover how tendons work.

How to build it (13 steps)
  1. 1Spread your hand out on the construction paper and trace it.
  2. 2Draw lines on your traced hand along each finger and across the palm.
  3. 3Cut your straws into pieces the same size as each line on the traced hand.
  4. 4Tape each straw piece onto its matching line, then cut out the traced hand.
  5. 5Cut out a 6-inch rectangle as wide as the wrist of the hand.
  6. 6Lay the hand upside down, place the rectangle halfway onto the wrist, and tape it.
  7. 7Flip the hand back over.
  8. 8Wrap one end of a string tightly around the skewer.
  9. 9Use the skewer to thread the string through the straw pieces, starting from the top of the finger.
  10. 10Bend the string over the top straw and tape it down. Make sure the string reaches the end of the wrist.
  11. 11Repeat steps 8 to 10 for the rest of the fingers.
  12. 12Cut a 1-inch piece of straw and thread all of the strings at the bottom of the hand through it.
  13. 13Tape that straw to the paper. Pull the strings at the bottom and watch the fingers close!

Pictures from the manual

Robotic Hand instruction manual, page 1 of 4Open page 1Robotic Hand instruction manual, page 2 of 4Open page 2Robotic Hand instruction manual, page 3 of 4Open page 3Robotic Hand instruction manual, page 4 of 4Open page 4
Download the full manual (PDF)Watch the video tutorial

Educational Flyers

The science behind every build

Each experiment includes an easy-to-follow educational flyer, personally designed by our team, that explains the science behind the activity.

Educational flyer explaining the science behind the paper rocket
Paper Rocket flyerDownload
Thrust:
The force that pushes the rocket forward, created by your breath pushing air out of the straw.
Lift:
The upward force that opposes gravity, created by the rocket's shape as it moves through the air.
Drag:
The force that slows the rocket down, caused by friction between the rocket and the air.
Gravity:
The force that pulls the rocket back down to the ground after it launches.
Newton's third law:
For every action there is an equal and opposite reaction: blowing air into the straw pushes the rocket forward.
Educational flyer explaining the science behind the pom-pom catapult
Pom-Pom Catapult flyerDownload
Lever:
A catapult is a type of lever, a simple machine that helps you move things.
Potential energy:
Pulling back the catapult's arm stores energy.
Kinetic energy:
Releasing the arm turns that stored energy into motion that launches the pom-pom.
Gravity:
The invisible force that pulls the pom-pom back down to the ground.
Newton's laws of motion:
Explain how objects move, including catapults and the things they launch.
Educational flyer explaining the science behind the robotic hand
Robotic Hand flyerDownload
Lever:
The straws act as levers that move the fingers of the hand.
Fulcrum:
The point where a lever pivots; here, the bamboo skewer.
Force:
A push or pull: pulling the strings moves the fingers, just like tendons in your hand.
Structure:
The hand is a structure that supports the weight of the fingers.
Design:
The process of creating something. In this project, you are designing a robotic hand.

Safety and supervision

  • All materials are hospital-safe and latex-free, with no sharp objects.
  • Each kit includes step-by-step instruction manuals with QR codes to video tutorials.
  • We recommend an adult helper for younger children, especially when using straws, string, and skewers.

Want kits for your hospital, school, or organization? Request STEMKits

Kits Around the World

Translated, packed, and delivered

Our kits have reached children across the DFW Metroplex, as well as in India, Bangladesh, Sweden, and Canada.

A chapter table in Sweden with STEM byggsatser instruction manuals, brochures, and kit boxes
Instruction manuals translated into Bangla, laid out before packing
Boxes of kits packed with PomPom Catapult instruction manuals
Swedish-language STEM byggsatser manuals for the paper rocket and robotic hand
Packed kits with translated instruction manuals in plastic sleeves
1,005+
Kits Delivered
32
Active Chapters
6
Countries with Chapters

As of October 2026

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