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.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
- 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a drinking straw (d) two chairs
- 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) two chairs (d) sticky tape
- 4.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
- 5.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
- 6.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
- 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
- 8.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
- 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) distance it travels (c) how big we blow it (d) the slope of the string
- 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
- 11.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) a long string (d) a battery cell
- 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
- 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) a balloon (d) a long string
- 14.⚖️ 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
- 15.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it gets cold (d) when it turns blue
- 16.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
- 17.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
- 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
- 19.True or false: air from the balloon goes forward. (a) False (b) True
- 20.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) two chairs (c) a battery cell (d) turmeric powder
- 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two chairs (d) a long string
- 22.⚖️ 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
- 23.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a balloon (d) a battery cell
- 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
- 25.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
- 26.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
- 27.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a drinking straw (c) a mirror (d) a magnet
- 28.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
- 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
- 30.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
- 31.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
- 32.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
- 33.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
- 34.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
- 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) the same tape (d) the slope of the string
- 36.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a balloon (c) two chairs (d) a long string
- 37.True or false: gas from the rocket goes backward. (a) False (b) True
- 38.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
- 39.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
- 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
Answer key
- needed
- a magnet
- yeast
- needed
- needed
- False
- False
- goes backward
- how big we blow it
- True
- a long string
- we keep it the same
- a mirror
- we measure it
- when the air runs out
- goes forward
- keep it away from faces
- we keep it the same
- False
- two chairs
- turmeric powder
- False
- a battery cell
- goes forward
- it goes less far
- it travels less far
- a drinking straw
- not needed
- we keep it the same
- goes forward
- True
- goes forward
- escaping air pushes it
- not needed
- distance it travels
- a mirror
- True
- False
- needed
- we keep it the same
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