Active Time
20-30 minutes
Total Project Time
20-30 minutes
Key Concepts
right brain, left brain, laterality, handedness, sidedness, left/right dominance, neurobiology
Two open hands are labeled left and right in marker

Introduction

If you write with your right hand, you may also prefer to draw, throw a ball, or eat food with your right hand, but have you ever wondered if your right foot is also more dominant than your left foot? What about your right eye and ear — do you prefer to use them more than your left ones? In this activity, you will get to find out whether people have a sidedness — that is, whether they generally prefer to do activities with one side of their body — and what that might say about their brain.

Credits

Teisha Rowland, 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.

Materials

  • Paper
  • Pen or pencil
  • A coin
  • Paper towel tube or toilet paper tube
  • A sea shell or phone
  • At least 5 volunteers
    Materials needed to do a science activity determining dominant handedness and sidedness using paper, pencil, phone, tube, and penny.

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Active Time
20-30 minutes
Total Project Time
20-30 minutes
Key Concepts
right brain, left brain, laterality, handedness, sidedness, left/right dominance, neurobiology