Pbs Kids: Design Squad: Build: Hack a Greeting Card

Try this triangle pop-up greeting card! Amaze your friends with your talent and creativity!

Follow these instructions to make pop-up greeting cards for your friends.

Make a cool greeting card with floating box pop-ups for a friend or make a bunch for invitations to a party!

This challenge is to design and build a headphone system to hear a musical instrument (real or homemade) better. Can you do it?

This challenge is to design and build a tool that can take a core sample from the center of a potato. Are you up to it?

Your job is to design and build a ping-pong carrier and send it down a zip line in 4 seconds or less. Are you up to the task?

This challenge is to design and build a cushion system that can safely land an egg dropped onto the floor from three feet up. Are you up to the challenge?

Your challenge is to design and build a rubber band-powered car that can crawl across the floor like a moon rover travels across the moon. Are you up to the challenge?

Can you design and build a device that will let you grab and drop objects from at least two feet away? Give it a try!

This challenge is to design and build a crane and determine how heavy a load it can lift.