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How to build a pyramid for school
Gather your supplies.
This cardboard pyramid looks like a realistic flat-sided pyramid, but it's lightweight and doesn't take very long to put together. You probably have most of the supplies on hand already.
For this project you will need : A large flattened cardboard box or piece of cardboard ruler pencil scissors hot glue gun and sticks brown or black permanent marker white school glue paint brush sand Cut out a cardboard square. Cut out a square of cardboard that is 14 inches (35.5 cm) by 14 inches (35.5 cm).