Invent-a-Wheel

Exploring slides and sliding, finding ways to reduce friction, and making and testing gravity-powered cars.


Cardboard, 8 1/2" x 11", pkg/30
Cardboard with slit (3 1/2" long, centered 1" below top edge), 8 1/2" x 11", pkg/30
Cardboard, 4 1/4" x 5 1/2", pkg/100
Ramp stand template on cardstock, 8 1/2" x 11", pkg/10
Cardstock, assorted colors, 8 1/2" x 11", pkg/25
Cardstock, assorted colors, 8 1/2" x 5 1/2", pkg/50
Bag, reclosable, 2 gallon, pkg/25
Felt, 10 colors, 8" x 10", pkg/25
Wax paper, roll, 11.9" x 75'
Aluminum foil, roll, 12" x 25'
Sandpaper, 9" x 11"
Masking tape, 1" x 60 yds
Paper clips, jumbo, pkg/100
Straws, 0.219", pkg/100
Wheels, 3mm hole
Steel washers, zinc-plated, for 9/16" screw
Binder clips, mini
Plastic spoons, pkg/100
Wooden dowels, 3 mm x 8", pkg/50
Wooden dowels, 3 mm x 6", pkg/50
Skewers, 8", pkg/100