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 goes forward? (a) the balloon (b) air from the balloon (c) water from the oars (d) gas from the rocket
- 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) two chairs (d) a drinking straw
- 3.True or false: the balloon goes forward. (a) False (b) True
- 4.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
- 5.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) turmeric powder
- 6.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the swimmer
- 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) it goes faster (d) less friction
- 8.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
- 9.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rowing boat (d) gas from the rocket
- 10.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
- 11.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the swimmer (d) the rocket
- 12.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
- 13.⚖️ 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) False (b) True
- 14.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a balloon (d) a long string
- 15.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a drinking straw (d) a magnet
- 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
- 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
- 18.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
- 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) a drinking straw (d) two chairs
- 20.⚖️ 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
- 21.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
- 22.⚖️ 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) the same tape (d) distance it travels
- 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
- 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
- 25.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) air from the balloon
- 26.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
- 27.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
- 28.⚖️ 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 slope of the string
- 29.True or false: two chairs 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 “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
- 31.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
- 32.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
- 33.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a balloon (d) a mirror
- 34.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
- 35.⚖️ 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
- 36.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the rocket
- 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two chairs (d) vinegar
- 38.True or false: the swimmer goes forward. (a) True (b) False
- 39.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a mirror (d) a balloon
- 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a drinking straw (d) a long string
Answer key
- the balloon
- a mirror
- True
- False
- turmeric powder
- the swimmer
- more friction, less far
- needed
- the rowing boat
- False
- water a swimmer pushes
- goes forward
- True
- vinegar
- a magnet
- True
- forward
- it can pop loudly
- yeast
- we keep it the same
- it travels less far
- how big we blow it
- we measure it
- we keep it the same
- air from the balloon
- needed
- False
- the slope of the string
- True
- we keep it the same
- needed
- it goes less far
- a balloon
- goes backward
- True
- the rocket
- vinegar
- True
- a mirror
- a magnet
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