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