STEP 1
Create a ramp. Place the stack of books on a table or the floor. Lean the large cardboard piece against it. Secure the cardboard with tape.
STEP 2
Build your car. Cut the pipe cleaner in half. Tape each half to the small piece of cardboard as shown above. Slide a Life Saver onto each pipe cleaner. Twist the ends to secure them as wheels. Tape the small box to the top of the cardboard as the car’s body.
STEP 3
Test your car. Roll your car down the ramp and mark how far it went. Repeat this test twice more. Measure and record each distance.
STEP 4
Plan and sketch any changes that could make your car go farther. Then rebuild and test again.