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 of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the rocket
- 2.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a long string (d) turmeric powder
- 3.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
- 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
- 5.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a battery cell (d) a balloon
- 6.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
- 7.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
- 8.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
- 9.⚖️ 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
- 10.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
- 11.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
- 12.True or false: air from the balloon goes backward. (a) False (b) True
- 13.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
- 14.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) the string pulls it (d) a magnet pulls it
- 15.⚖️ 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
- 16.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
- 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) two chairs (d) a balloon
- 18.⚖️ 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 straw (c) distance it travels
- 19.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
- 20.⚖️ 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
- 21.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) a balloon (d) a long string
- 22.⚖️ 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
- 23.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
- 24.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
- 25.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) a mirror (d) vinegar
- 26.True or false: the swimmer goes forward. (a) True (b) False
- 27.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
- 28.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) vinegar (c) turmeric powder (d) a battery cell
- 29.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
- 30.⚖️ 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) the slope of the string (c) the same string (d) distance it travels
- 31.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in
- 32.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) vinegar (d) turmeric powder
- 33.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
- 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
- 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a battery cell (d) a balloon
- 36.True or false: yeast is needed for the balloon rocket. (a) True (b) False
- 37.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) a mirror (d) a battery cell
- 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
- 39.True or false: water from the oars goes backward. (a) False (b) True
- 40.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the balloon
Answer key
- the rocket
- turmeric powder
- throw them away safely
- forward
- a battery cell
- needed
- False
- goes forward
- we keep it the same
- it goes less far
- goes forward
- True
- needed
- escaping air pushes it
- True
- True
- yeast
- the same straw
- a balloon rocket
- False
- a magnet
- False
- not needed
- keep it away from faces
- a balloon
- True
- not needed
- a long string
- False
- how big we blow it
- it guides the balloon
- two chairs
- goes backward
- we keep it the same
- a battery cell
- False
- a drinking straw
- False
- True
- the balloon
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids