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: vinegar is needed for the balloon rocket. (a) False (b) True
- 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
- 3.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) yeast (c) sticky tape (d) a long string
- 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
- 5.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
- 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) sticky tape (d) a long string
- 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
- 8.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) yeast (d) a drinking straw
- 9.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a mirror (d) two chairs
- 10.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a long string (c) a battery cell (d) a mirror
- 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
- 12.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) gas from the rocket
- 13.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) a battery cell (d) a magnet
- 14.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) two chairs (d) a long string
- 15.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
- 16.True or false: yeast is needed for the balloon rocket. (a) True (b) False
- 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the slope of the string (c) the same tape (d) distance it travels
- 18.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
- 19.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
- 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a drinking straw (d) two chairs
- 21.True or false: the rowing boat goes backward. (a) True (b) False
- 22.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the swimmer (d) water from the oars
- 23.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
- 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
- 25.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
- 26.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
- 27.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
- 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
- 29.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
- 30.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
- 31.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
- 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
- 33.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
- 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
- 35.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a balloon (d) two chairs
- 36.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
- 37.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
- 38.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
- 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) two chairs
- 40.True or false: gas from the rocket goes forward. (a) True (b) False
Answer key
- False
- False
- yeast
- we keep it the same
- False
- a mirror
- we change it
- a drinking straw
- two chairs
- a long string
- goes backward
- gas from the rocket
- a balloon
- turmeric powder
- goes backward
- False
- distance it travels
- it travels less far
- needed
- a battery cell
- False
- the swimmer
- False
- we keep it the same
- throw them away safely
- False
- False
- we keep it the same
- it goes less far
- not needed
- True
- True
- False
- we measure it
- a mirror
- needed
- not needed
- goes backward
- a magnet
- False
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