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