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