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.
NameDateTime takenScore ___ / 40
- 1.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
- 2.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
- 3.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a balloon (d) a drinking straw
- 4.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
- 5.True or false: the swimmer goes backward. (a) True (b) False
- 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) two chairs (d) vinegar
- 7.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
- 8.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) vinegar (c) a mirror (d) yeast
- 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
- 10.True or false: the balloon goes forward. (a) False (b) True
- 11.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
- 12.⚖️ 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) the same tape (d) the slope of the string
- 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) a battery cell
- 14.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) yeast (d) a long string
- 15.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
- 16.True or false: yeast is needed for the balloon rocket. (a) True (b) False
- 17.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
- 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
- 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a balloon (d) a drinking straw
- 20.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
- 21.🚀 Which of these goes forward? (a) gas from the rocket (b) the balloon (c) water a swimmer pushes (d) water from the oars
- 22.⚖️ 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
- 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
- 24.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) water a swimmer pushes (d) the balloon
- 25.⚖️ 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) the same straw (c) distance it travels
- 26.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) sticky tape (d) a magnet
- 27.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
- 28.True or false: gas from the rocket goes forward. (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 straw (b) the slope of the string (c) how big we blow it (d) distance it travels
- 30.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
- 31.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
- 32.True or false: a long string is needed for the balloon rocket. (a) True (b) False
- 33.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) water from the oars
- 34.🚀 Which of these goes backward? (a) gas from the rocket (b) the balloon (c) the rocket (d) the swimmer
- 35.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
- 36.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
- 37.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
- 38.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) vinegar (c) two chairs (d) sticky tape
- 39.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
- 40.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) air from the balloon (d) the balloon
Answer key
- False
- needed
- a mirror
- True
- False
- vinegar
- False
- a balloon
- we keep it the same
- True
- False
- how big we blow it
- a battery cell
- a long string
- keep it away from faces
- False
- True
- True
- a magnet
- throw them away safely
- the balloon
- False
- True
- water a swimmer pushes
- the same straw
- a magnet
- goes backward
- False
- distance it travels
- more friction, less far
- not needed
- True
- water from the oars
- gas from the rocket
- it goes less far
- not needed
- not needed
- vinegar
- needed
- air from the balloon
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