Physics
Medium
DIY Periscope
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:25 min Materials:5 items Age range:8-12
Popular Materials
Physics
Medium
Amazing DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:10 min Materials:5 items Age range:8-12
Physics
Hard
Super DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:15 min Materials:5 items Age range:8-12
Physics
Easy
Mega DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:20 min Materials:5 items Age range:8-12
Physics
Medium
Ultimate DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:25 min Materials:5 items Age range:8-12
Physics
Hard
Epic DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:30 min Materials:5 items Age range:8-12
Physics
Easy
Cool DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:5 min Materials:5 items Age range:8-12
Physics
Medium
Awesome DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:10 min Materials:5 items Age range:8-12
Physics
Hard
Fun DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:15 min Materials:5 items Age range:8-12
Physics
Easy
Quick DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:20 min Materials:5 items Age range:8-12
Physics
Medium
Simple DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:25 min Materials:5 items Age range:8-12
Physics
Hard
Giant DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:30 min Materials:5 items Age range:8-12
Physics
Easy
Mini DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:5 min Materials:5 items Age range:8-12
Physics
Medium
Rainbow DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:10 min Materials:5 items Age range:8-12
Physics
Hard
Glow-in-the-Dark DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:15 min Materials:5 items Age range:8-12
Physics
Easy
Magnetic DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:20 min Materials:5 items Age range:8-12
Physics
Medium
Solar-Powered DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:25 min Materials:5 items Age range:8-12
Physics
Hard
Wind-Powered DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:30 min Materials:5 items Age range:8-12
Physics
Easy
Water-Powered DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:5 min Materials:5 items Age range:8-12
Physics
Medium
Spinning DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:10 min Materials:5 items Age range:8-12
Physics
Hard
Bouncing DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:15 min Materials:5 items Age range:8-12
Physics
Easy
Floating DIY Periscope Challenge
A periscope works using the law of reflection: light bounces off a mirror at the same angle it hits it. The top mirror c...
Duration:20 min Materials:5 items Age range:8-12
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
Simple Electric Circuit
An electric circuit is a complete loop that electricity can flow through. Electricity is the movement of tiny particles ...
Duration:20 min Materials:7 items Age range:8-12
Engineering
Hard
Amazing Simple Electric Circuit Challenge
An electric circuit is a complete loop that electricity can flow through. Electricity is the movement of tiny particles ...
Duration:30 min Materials:7 items Age range:8-12
Engineering
Easy
Super Simple Electric Circuit Challenge
An electric circuit is a complete loop that electricity can flow through. Electricity is the movement of tiny particles ...
Duration:5 min Materials:7 items Age range:8-12
Engineering
Medium
Mega Simple Electric Circuit Challenge
An electric circuit is a complete loop that electricity can flow through. Electricity is the movement of tiny particles ...
Duration:10 min Materials:7 items Age range:8-12