Make a Solar Eclipse Viewer with Common Household Materials
Make a solar eclipse viewer that is super-easy for your children to use and can be used with simple items you probably already have.
In the center of the cardstock, cut out a 2" square.
Cut a piece of foil that is 3" square.
Tape the foil over the square you cut in the cardstock and use the pin to make a small hole in the center of the foil.
Take your viewer and the other piece of blank cardstock outside. Place the blank piece of cardstock on the ground. Then, stand with your back to the Sun.
Move the viewer until you see sunlight come through the hole and project onto the piece of cardstock on the ground.