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