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