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