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