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.
NameDateTime takenScore ___ / 40
- 1.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
- 2.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
- 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a balloon (d) a long string
- 4.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
- 5.⚖️ 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 string
- 6.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
- 7.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
- 8.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
- 9.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
- 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a drinking straw (d) a long string
- 11.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) sticky tape (d) a long string
- 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
- 13.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
- 14.True or false: the balloon goes forward. (a) True (b) False
- 15.⚖️ 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) how big we blow it (d) the same string
- 16.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) gas from the rocket (d) air from the balloon
- 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
- 18.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rowing boat (d) gas from the rocket
- 19.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
- 20.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
- 21.⚖️ 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
- 22.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
- 23.True or false: air from the balloon goes backward. (a) True (b) False
- 24.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) air from the balloon (d) water a swimmer pushes
- 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
- 26.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) a drinking straw (d) a magnet
- 27.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
- 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
- 29.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rocket (c) gas from the rocket (d) water from the oars
- 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) vinegar
- 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
- 32.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
- 33.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
- 34.True or false: water a swimmer pushes goes forward. (a) True (b) False
- 35.⚖️ 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
- 36.True or false: water a swimmer pushes goes backward. (a) True (b) False
- 37.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
- 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) turmeric powder (d) a long string
- 39.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a mirror (d) a long string
- 40.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
Answer key
- needed
- False
- a battery cell
- False
- the same string
- goes forward
- False
- throw them away safely
- needed
- a magnet
- a magnet
- it goes less far
- False
- True
- how big we blow it
- the balloon
- False
- the rowing boat
- not needed
- goes backward
- True
- True
- True
- the swimmer
- True
- a drinking straw
- more friction, less far
- we change it
- the rocket
- vinegar
- we keep it the same
- goes forward
- keep it away from faces
- False
- we keep it the same
- True
- it can pop loudly
- turmeric powder
- a long string
- goes forward
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids