Science Bonanza: Knots and Pulleys

Children tyeing knots in a rope

We use knots and pulleys every day. Participants will get the chance to learn how to tie knots and how to build pulleys. These concepts can be used to explore, experiment, and create simple machines!

Ages 5-8 (great for families to do together) 

Materials Needed: 3 feet of rope. Paracord or braided nylon rope are recommended.

Instructors: Portsmouth Naval Shipyard

This is a pre-recorded video with instructions on how to tie knots and build pulleys. Youth will enjoy this hands on experience and learning the basics of building some simple machines!

Things to try:
  • Tie a knot that is strong enough to pick a bucket off the ground.
  • Make a pulley system with your rope over a railing. Can you lift a bucket using your pulley?.
  • Add weight into your bucket. Pick it up, how heavy is it? How heavy does it feel when you use your pulley to pick it up?

To register for this workshop visit the 4-H Science Bonanza Registration Page