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: a drinking straw is needed for the balloon rocket. (a) False (b) True
- 2.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
- 3.True or false: the swimmer goes backward. (a) False (b) True
- 4.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the balloon (d) the swimmer
- 5.⚖️ 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
- 6.True or false: gas from the rocket goes backward. (a) False (b) True
- 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) sticky tape (d) two chairs
- 8.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the balloon (d) water from the oars
- 9.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
- 10.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
- 11.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
- 12.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
- 13.True or false: the swimmer goes forward. (a) False (b) True
- 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
- 15.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a battery cell (d) vinegar
- 16.True or false: gas from the rocket goes forward. (a) False (b) True
- 17.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
- 18.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
- 19.🎈 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
- 20.⚖️ 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
- 21.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
- 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same tape (c) how big we blow it (d) distance it travels
- 23.⚖️ 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
- 24.⚖️ 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 same straw
- 25.🧺 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) a battery cell
- 26.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
- 27.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
- 28.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a magnet (c) a drinking straw (d) a balloon
- 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
- 30.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a balloon (c) vinegar (d) a battery cell
- 31.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the rocket
- 32.True or false: water a swimmer pushes goes backward. (a) False (b) True
- 33.⚖️ 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
- 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) turmeric powder (d) sticky tape
- 35.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) yeast (d) a mirror
- 36.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) water a swimmer pushes (d) the rowing boat
- 37.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
- 38.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
- 39.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the rowing boat
- 40.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
Answer key
- True
- goes forward
- False
- air from the balloon
- we change it
- True
- vinegar
- the balloon
- False
- True
- throw them away safely
- True
- True
- forward
- a long string
- False
- False
- keep it away from faces
- when the air runs out
- True
- True
- how big we blow it
- True
- the same straw
- a battery cell
- not needed
- goes forward
- a magnet
- False
- a balloon
- the rocket
- True
- True
- turmeric powder
- sticky tape
- water a swimmer pushes
- needed
- False
- the rowing boat
- it travels less far
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids