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 two chairs for the balloon rocket? (a) needed (b) not needed
- 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) the same tape (d) distance it travels
- 3.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
- 4.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
- 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
- 6.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
- 7.⚖️ 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
- 8.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
- 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
- 10.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a mirror (d) a drinking straw
- 11.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) vinegar (d) sticky tape
- 12.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) two chairs (d) a magnet
- 13.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
- 14.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a balloon (d) a drinking straw
- 15.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
- 16.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
- 17.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a drinking straw (c) two chairs (d) a balloon
- 18.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
- 19.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
- 20.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
- 21.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
- 22.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
- 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) turmeric powder
- 24.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
- 25.True or false: air from the balloon goes backward. (a) True (b) False
- 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
- 27.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) air from the balloon (d) the swimmer
- 28.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
- 29.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
- 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
- 31.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
- 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
- 33.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
- 34.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
- 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a long string (d) a drinking straw
- 36.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
- 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
- 38.⚖️ 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
- 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
- 40.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
Answer key
- needed
- distance it travels
- True
- goes backward
- we keep it the same
- True
- True
- it guides the balloon
- the slope of the string
- a drinking straw
- sticky tape
- a magnet
- goes forward
- turmeric powder
- needed
- when the air runs out
- yeast
- not needed
- not needed
- False
- goes backward
- goes forward
- turmeric powder
- True
- True
- False
- air from the balloon
- False
- throw them away safely
- True
- not needed
- the same tape
- it can pop loudly
- needed
- a battery cell
- goes forward
- we keep it the same
- we keep it the same
- the same string
- True
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