Live Science Class: Ben Franklin’s Long Arm

Diagram of a long arm

Join our series of weekly virtual classes to learn how Ben Franklin’s inventions and scientific discoveries illuminate the national curriculum! You can recreate all the featured science demonstrations at home using household materials.

Have you heard of Ben Franklin’s long arm? He used this invention to reach books on high shelves. Learn how Ben drew on his knowledge of forces to invent this handy device and create your own to use at home!

Activity Materials: cardboard, 4 split pins, 1 rubber band, string, scissors, tape, ruler, pencil

Links to the Science Curriculum:

KS2: Forces (Y3, Y5)

KS3: Forces

Most Suitable for KS2 and KS3 (Grades 2-8) but all ages welcome!

If you have any questions, please contact

Watch the full class and demonstration:

How to make a long arm: