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
Popular Materials
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