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