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Seeing in the Dark

Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
Vision, pupil, pupillometry
Red light allows you to see more in the dark

Introduction

Have you ever considered taking a nighttime nature walk? Would you wait until there is a full moon, so you could profit from sunlight reflected on the moon, or would you rather take a flashlight? Do you think trees would look black, green, or grey in the dark? Do this activity to examine your night vision and prepare for your next nighttime adventure!

Credits

Sabine De Brabandere, 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 1,150 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.

Materials

  • Flashlight that shines white light.
  • Flashlight that shines red light. You can also hold a translucent red object like a translucent red food container lid in front of the white flash to make it shine red light.
  • Dark room. Almost pitch-black works best. You can also do it outdoors at night, away from street lamps or other sources of light.
  • Bag with markers, pencils, and pens of different colors.
  • A helper whose eyes you feel comfortable looking into, or a mirror.
    Items needed for a science activity that explores night vison

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Active Time
30-45 minutes
Total Project Time
30-45 minutes
Key Concepts
Vision, pupil, pupillometry