Experiment: Discover the science behind afterimages

Objective: Investigate color perception by observing afterimages, which are the images left on your retina after you stare at an object and then look away.

Areas of Science: Human Biology & Health

Difficulty: Intermediate medium

Time required: Short (2-5 days)

Prerequisites: A computer with internet access is recommended.

Material availability: Readily available

Cost: Very Low (under $20)

Safety: No issues

Credits: David Whyte, PhD, Science Buddies