Search Results


Showing results 1 to 2 of 2

Source Institutions
Add to list Details
In this activity, learners calculate the width (horizontal diameter) of the blind spot on their retina. Learners make a blind spot tester using a piece of notebook paper.

1 cent - $1 per student Ages 11 - 18 5 to 10 minutes
Source Institutions
Add to list Details
This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

free Ages 8 - 18 5 to 10 minutes