Rock Racers

We now know that rocks can change, but did you know they can also move This is known as the rock cycle. Rocks, and all the tiny parts of rocks, move and shift over time. Some of this movement comes from environmental influences, such as wind, rain, or animals. 

Rock Racers is not only fun to play, but is a work of art, too. When you see your fin- 

1 piece foam board, at least 8V2 x 11 inches Pencil 

Start by collecting SO or more small, flat rocks in your bucket. 

Wash your rocks and lay them on an old towel to dry. A pebble, rock, or shell with a clean surface will stick better. 

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When the board is completely dry you are ready to race a friend from top to bottom. Lean the board at an angle against a tree or wall. Each player should hold a bottle cap at the top of the board inside the rock tracks. When someone says go, let go of your bottle caps and watch them race to the finish. When you are not using your Rock Racers board, set it up where people can see the design you ve made. 

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