OBJECTIVES: You will learn the differences between aircraft and spacecraft, especially propulsion systems. You will build pinwheel airplanes and balloon rockets. Try different types of balloons on your "balloon rocket launcher". Which ones fly faster? Fly farther? You can also try an interactive activity - does your rocket have "the right stuff" to lift-off! STEPS TO FOLLOW: Review the information in the background section. Ask yourself, "What are the differences between aircraft and spacecraft?"

MATERIALS: Balloons - Different Shapes and Sizes Clear Tape Safety Scissors String - at least 15 feet Flat Wood Trim, Approximately 1/4" thick, 3/4" Wide and 60" Long; or a Light Weight Wooden Yardstick or Dowel 60" Long Straight Drinking Straw Bicycle Pump To make the rocket balloon: Mark each foot of string with a different color. Tie the string to one end of the long rod. Thread the straw through the opposite end of the string. Prepare two pieces of tape to hold the balloon on the straw. Blow up a long balloon with a bicycle pump. Hold the balloon closed so that the air will not escape. Tape the side of the balloon to the straw. Have someone raise the rod so that the string hangs straight down. For extra height have someone stand in a stairwell above you. Release the balloon. How high did it go? Repeat with different shapes of balloons. Which balloon goes higher? Which balloon goes faster?