Live Science Class for Kids: Ben Franklin’s Bifocals

Bifocals left on an open book

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

Have you ever wondered how glasses work? Learn how light helps us to see and how Ben made one of the first pairs of bifocal glasses. Use the science of refraction to carry out magic tricks!

Activity materials: 1 glass or jar filled with water, 2 pieces of paper, felt tip pens

Links to the Science Curriculum:

KS2: Light (Y3, Y6)

KS3: Light Waves

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

If you have any questions, please contact

Watch the class and demonstration below: