Physics
Easy
Balloon Hovercraft
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:15 min Materials:5 items Age range:6-12
Popular Materials
Physics
Easy
Amazing Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:5 min Materials:5 items Age range:6-12
Physics
Medium
Super Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:10 min Materials:5 items Age range:6-12
Physics
Hard
Mega Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:15 min Materials:5 items Age range:6-12
Physics
Easy
Ultimate Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:20 min Materials:5 items Age range:6-12
Physics
Medium
Epic Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:25 min Materials:5 items Age range:6-12
Physics
Hard
Cool Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:30 min Materials:5 items Age range:6-12
Physics
Easy
Awesome Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:5 min Materials:5 items Age range:6-12
Physics
Medium
Fun Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:10 min Materials:5 items Age range:6-12
Physics
Hard
Quick Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:15 min Materials:5 items Age range:6-12
Physics
Easy
Simple Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:20 min Materials:5 items Age range:6-12
Physics
Medium
Giant Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:25 min Materials:5 items Age range:6-12
Physics
Hard
Mini Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:30 min Materials:5 items Age range:6-12
Physics
Easy
Rainbow Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:5 min Materials:5 items Age range:6-12
Physics
Medium
Glow-in-the-Dark Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:10 min Materials:5 items Age range:6-12
Physics
Hard
Magnetic Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:15 min Materials:5 items Age range:6-12
Physics
Easy
Solar-Powered Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:20 min Materials:5 items Age range:6-12
Physics
Medium
Wind-Powered Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:25 min Materials:5 items Age range:6-12
Physics
Hard
Water-Powered Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:30 min Materials:5 items Age range:6-12
Physics
Easy
Spinning Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:5 min Materials:5 items Age range:6-12
Physics
Medium
Bouncing Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:10 min Materials:5 items Age range:6-12
Physics
Hard
Floating Balloon Hovercraft Challenge
The balloon hovercraft works on the same principle as a real hovercraft! The air from the balloon flows through the cap ...
Duration:15 min Materials:5 items Age range:6-12
Engineering
Hard
Cardboard Robot Arm
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:30 min Materials:8 items Age range:9-12
Engineering
Medium
Amazing Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:10 min Materials:8 items Age range:9-12
Engineering
Hard
Super Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:15 min Materials:8 items Age range:9-12
Engineering
Easy
Mega Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:20 min Materials:8 items Age range:9-12
Engineering
Medium
Ultimate Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:25 min Materials:8 items Age range:9-12
Engineering
Hard
Epic Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:30 min Materials:8 items Age range:9-12
Engineering
Easy
Cool Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:5 min Materials:8 items Age range:9-12
Engineering
Medium
Awesome Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:10 min Materials:8 items Age range:9-12
Engineering
Hard
Fun Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:15 min Materials:8 items Age range:9-12
Engineering
Easy
Quick Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:20 min Materials:8 items Age range:9-12
Engineering
Medium
Simple Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:25 min Materials:8 items Age range:9-12
Engineering
Hard
Giant Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:30 min Materials:8 items Age range:9-12
Engineering
Easy
Mini Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:5 min Materials:8 items Age range:9-12
Engineering
Medium
Rainbow Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:10 min Materials:8 items Age range:9-12
Engineering
Hard
Glow-in-the-Dark Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:15 min Materials:8 items Age range:9-12
Engineering
Easy
Magnetic Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:20 min Materials:8 items Age range:9-12
Engineering
Medium
Solar-Powered Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:25 min Materials:8 items Age range:9-12
Engineering
Hard
Wind-Powered Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:30 min Materials:8 items Age range:9-12
Engineering
Easy
Water-Powered Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:5 min Materials:8 items Age range:9-12
Engineering
Medium
Spinning Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:10 min Materials:8 items Age range:9-12
Engineering
Hard
Bouncing Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:15 min Materials:8 items Age range:9-12
Engineering
Easy
Floating Cardboard Robot Arm Challenge
Your cardboard robot arm mimics how real tendons and muscles work in your hand! The strings act like tendons — strong co...
Duration:20 min Materials:8 items Age range:9-12
Engineering
Medium
Rubber Band Catapult
A catapult is a simple machine that converts stored elastic potential energy into kinetic energy (energy of motion). Whe...
Duration:20 min Materials:6 items Age range:7-12
Engineering
Hard
Amazing Rubber Band Catapult Challenge
A catapult is a simple machine that converts stored elastic potential energy into kinetic energy (energy of motion). Whe...
Duration:15 min Materials:6 items Age range:7-12
Engineering
Easy
Super Rubber Band Catapult Challenge
A catapult is a simple machine that converts stored elastic potential energy into kinetic energy (energy of motion). Whe...
Duration:20 min Materials:6 items Age range:7-12
Engineering
Medium
Mega Rubber Band Catapult Challenge
A catapult is a simple machine that converts stored elastic potential energy into kinetic energy (energy of motion). Whe...
Duration:25 min Materials:6 items Age range:7-12