Make a Pinhole Projector to View the Solar Eclipse

This video tutorial guides you through creating a simple solar projector to safely view a solar eclipse or calculate the sun's diameter. It involves cutting a hole in cardboard, covering it with aluminum foil, and testing the setup with a flashlight. Finally, the projector is used outdoors to observe the sun.

What materials do you need to create a solar projector?

Describe the process of making a small hole in the aluminum foil.

How can you test the projector before using it with the sun?

What happens to the diameter of the projected circle when you move the flashlight?

What is the final step to use the projector with the sun?