After your students have examined the tests, talk about what impact colorblindness might have on a person's daily life. Kids have to guess by using their sense of touch in this activity. Gather objects that are soft, smooth, rough, bumpy, etc. and put them into paper bags. When all the students have had the opportunity to feel the objects, instruct them to share their ideas. List the suggestions for each bag on the board, and then open the bags to reveal their contents.
Optical illusions can deceive the eyes.
These visual tricks amaze students. Because our eyes work in specific ways, they can also give us false impressions when presented with optical illusions. Have your students try the illusions at SandlotScience Optical Illusions and Optical Illusions . Your students will also enjoy creating their own optical illusions, such as a picture that people interpret in different ways or an image made of lines. Playing instruments they make is one of the most creative and unique ways your students can experiment with the sense of hearing.