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.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) vinegar (c) a long string (d) a balloon
- 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) sticky tape (d) turmeric powder
- 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) how big we blow it (d) distance it travels
- 5.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
- 6.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
- 7.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
- 8.⚖️ 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
- 9.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rocket (d) gas from the rocket
- 10.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the rowing boat
- 11.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
- 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a drinking straw (d) a magnet
- 13.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
- 14.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
- 15.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) air from the balloon (d) water from the oars
- 16.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
- 17.True or false: the rowing boat goes forward. (a) True (b) False
- 18.True or false: the balloon goes forward. (a) False (b) True
- 19.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
- 20.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
- 21.⚖️ 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
- 22.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
- 23.True or false: air from the balloon goes forward. (a) True (b) False
- 24.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a magnet (d) a balloon
- 25.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
- 26.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
- 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) distance it travels (c) the same straw (d) the same tape
- 28.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
- 29.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
- 30.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
- 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) the same tape (c) distance it travels
- 32.⚖️ 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
- 33.True or false: water from the oars goes backward. (a) False (b) True
- 34.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
- 35.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
- 36.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
- 37.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
- 38.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
- 39.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
- 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) vinegar (d) a balloon
Answer key
- True
- vinegar
- turmeric powder
- distance it travels
- it guides the balloon
- needed
- it can pop loudly
- we keep it the same
- the rocket
- gas from the rocket
- goes forward
- a magnet
- not needed
- it travels less far
- the balloon
- escaping air pushes it
- True
- True
- keep it away from faces
- goes forward
- False
- not needed
- False
- a balloon
- it goes less far
- False
- how big we blow it
- goes backward
- goes backward
- not needed
- the same tape
- the same string
- True
- not needed
- needed
- goes backward
- True
- False
- goes forward
- vinegar
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids