Step 1

Next, gather your materials for this activity. We’ll start with the two cardboard rectangles and aluminum foil. Using a pencil, trace the outside of the cardboard pieces onto the aluminum foil.

Pencil tracing around cardboard rectangles onto aluminum foil.

Tracing on the aluminum foil with a pencil should create marks along its surface. If you need to see these lines more clearly, try using a pen or marker.

Cardboard rectangles next to aluminum with pencil trace outline.