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