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