Balloon Rocket STEM Worksheet
What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.
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- 1.True or false: water from the oars goes backward. (a) False (b) True
- 2.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) a long string (d) a balloon
- 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
- 4.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rocket (d) air from the balloon
- 5.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
- 6.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a battery cell (d) a mirror
- 7.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
- 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a balloon (c) a drinking straw (d) two chairs
- 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a mirror (d) a long string
- 10.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the balloon (d) the rowing boat
- 11.🚀 Which of these goes forward? (a) the swimmer (b) gas from the rocket (c) water from the oars (d) air from the balloon
- 12.True or false: the rocket goes backward. (a) True (b) False
- 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) the same string (d) how big we blow it
- 14.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) vinegar (d) sticky tape
- 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) yeast (d) a drinking straw
- 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a drinking straw (d) a long string
- 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
- 18.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
- 19.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
- 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
- 21.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) gas from the rocket
- 22.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
- 23.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
- 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
- 25.True or false: the swimmer goes forward. (a) False (b) True
- 26.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
- 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the slope of the string (c) how big we blow it (d) distance it travels
- 28.True or false: gas from the rocket goes backward. (a) True (b) False
- 29.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a drinking straw (c) a mirror (d) a battery cell
- 30.True or false: water a swimmer pushes goes backward. (a) False (b) True
- 31.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
- 32.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a long string (d) a mirror
- 33.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
- 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
- 35.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
- 36.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) sticky tape (c) a long string (d) two chairs
- 37.True or false: water from the oars goes forward. (a) False (b) True
- 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a drinking straw (d) a balloon
- 39.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
- 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
Answer key
- True
- a magnet
- the slope of the string
- the rocket
- not needed
- a long string
- False
- vinegar
- a mirror
- air from the balloon
- the swimmer
- False
- distance it travels
- sticky tape
- yeast
- a battery cell
- False
- it travels less far
- not needed
- False
- gas from the rocket
- throw them away safely
- not needed
- True
- True
- goes backward
- how big we blow it
- True
- a drinking straw
- True
- False
- a mirror
- more friction, less far
- False
- goes backward
- yeast
- False
- turmeric powder
- needed
- we keep it the same
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