Balloon rocket on a string.

STREAM Activity: Balloon Rocket

Activity best for children ages three and up

Find your inner physicist and create your own balloon rocket! This can be done anywhere using a balloon, string, straws, and tape.

MATERIALS

  • Balloon

  • String

  • Straw

  • Tape

DIRECTIONS

STEP 1

Tie string to a doorknob, chair, or other sturdy surface.

STEP 2

Thread string through the straw and tie the other end on another sturdy surface.

STEP 3

Blow up the balloon but do not tie the end.

STEP 4

Hold the balloon closed while you tape it to the straw.

STEP 5

Release the end of the balloon and watch it travel down the string.

Extension 1

Try taping “cargo” to your balloon and see what it can carry.

Balloon rocket with "cargo" added on top.

Extension 2

Have a race! Set up two balloon rockets and see which one is faster.

Extension 3

Time your balloon rocket with and without “cargo.” Record your findings!