Search
  • Gloria Hoffner

The Cutting Edge

Have you ever wondered how a knife cuts? Here is a fun experiment for you and your residents.

Materials: Empty cardboard food box, plastic knife and modeling clay.

Process: Roll a ball from the clay. Ask residents to use the flat bottom of the empty box to cut the clay in half. Now ask residents to use the knife to cut the ball in half.

Result: The box bottom does not cut the clay because the force being applied is spread across the clay. The knife cuts the clay because the small edge of the knife concentrates the force in one area.



6 views

Recent Posts

See All

Earth Day 2020

Earth Day Celebrates 50th Anniversary April 22, 1970 was the first Earth Day, a day to honor and to offer ways to protect our fragile planet! Sir Fred Hoyle, British mathematician and astronomer, expl

© Copyright 2019 Guitar with Gloria and Science for Seniors. All rights reserved. | Photos of Gloria Hoffner by Linda Johnson | Web Design by Simple Websites Fast

  • Facebook - Science for Seniors
  • Instagram - Science For Seniors
  • YouTube - Science for Seniors

Ph: 610-209-0964

311 Summit Rd.
Media, PA 19063

We Are Never Too Old To Learn Something New!

Senior activities and programs in Pennsylvania, New Jersey and Delaware.