Active Time
20-30 minutes
Total Project Time
20-30 minutes
Key Concepts
Engineering design, material properties
A back scratcher made from straws and paper clips, one made from popsicle sticks and duct tape, and one made from cardboard and wooden skewers.

Introduction

Don't you hate it when you have an itch you can't reach right in the middle of your back? Engineer a solution to the problem and build your own back scratcher in this fun activity!

Credits

Ben Finio, PhD, Science Buddies
This activity is not appropriate for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data. To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.
Next: Materials

Materials

  • Pencil and paper
  • Straws
  • Popsicle sticks
  • Cardboard
  • Duct tape
  • Glue
  • Scissors
  • Volunteers to try your back scratcher
Next: Instructions

Reviews

|
Science Buddies |
Was this review helpful?
Report Inappropriate Comment
Be the first one to review this activity.
Active Time
20-30 minutes
Total Project Time
20-30 minutes
Key Concepts
Engineering design, material properties
icon scientific method

Ask an Expert

Curious about the science?
Post your question for our scientists.

Log In to Leave a Review

Explore Our Science Videos

Physics and Chemistry of an Explosion Science Fair Project Idea
How to Build an ArtBot
Flower Dissection - STEM Activity
Free science fair projects.