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: water from the oars goes backward. (a) True (b) False
- 2.⚖️ 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
- 3.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water a swimmer pushes (d) the swimmer
- 4.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
- 5.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) gas from the rocket (d) air from the balloon
- 6.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
- 7.True or false: air from the balloon goes forward. (a) False (b) True
- 8.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) a long string (d) sticky tape
- 9.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
- 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a drinking straw (c) a balloon (d) a long string
- 11.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
- 12.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
- 13.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
- 14.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) sticky tape (d) a battery cell
- 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same straw (d) the same string
- 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) two chairs (d) a battery cell
- 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the slope of the string
- 18.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
- 19.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
- 20.⚖️ 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 measure it (c) we change it
- 21.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
- 22.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
- 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
- 24.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the swimmer (d) gas from the rocket
- 25.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a battery cell (d) a long string
- 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
- 27.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a mirror (d) a drinking straw
- 28.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a mirror (d) a long string
- 29.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
- 30.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a drinking straw (d) a mirror
- 31.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) water a swimmer pushes (d) the rowing boat
- 32.True or false: the swimmer goes forward. (a) False (b) True
- 33.🧺 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) yeast
- 34.True or false: gas from the rocket goes backward. (a) False (b) True
- 35.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
- 36.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a drinking straw (d) a balloon
- 37.⚖️ 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
- 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a magnet (d) a balloon
- 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
- 40.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
Answer key
- True
- True
- water a swimmer pushes
- it can pop loudly
- the rocket
- False
- False
- a magnet
- False
- vinegar
- needed
- needed
- needed
- sticky tape
- how big we blow it
- a battery cell
- the slope of the string
- it guides the balloon
- it goes less far
- we measure it
- needed
- goes forward
- goes forward
- gas from the rocket
- a battery cell
- False
- a mirror
- a long string
- not needed
- a drinking straw
- the rowing boat
- True
- yeast
- True
- goes forward
- vinegar
- we keep it the same
- a magnet
- forward
- False
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