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.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
- 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) a balloon (d) sticky tape
- 3.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
- 4.⚖️ 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 change it (c) we keep it the same
- 5.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the rowing boat (d) water a swimmer pushes
- 6.True or false: water from the oars goes backward. (a) True (b) False
- 7.⚖️ 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 string (c) distance it travels
- 8.True or false: the balloon goes backward. (a) True (b) False
- 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
- 10.⚖️ 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 keep it the same (c) we change it
- 11.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) vinegar (d) a battery cell
- 12.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) a drinking straw (d) two chairs
- 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) a drinking straw (d) sticky tape
- 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
- 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two chairs (d) a mirror
- 16.⚖️ 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
- 17.⚖️ 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 same string (c) distance it travels (d) the slope of the string
- 18.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
- 19.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
- 20.True or false: the swimmer goes backward. (a) True (b) False
- 21.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) water from the oars (d) the swimmer
- 22.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a magnet (d) sticky tape
- 23.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
- 24.🛟 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
- 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
- 26.⚖️ 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) how big we blow it (c) the same straw (d) distance it travels
- 27.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
- 28.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a balloon (d) a magnet
- 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a drinking straw (d) two chairs
- 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
- 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 slope of the string (c) distance it travels
- 32.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
- 33.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
- 34.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
- 35.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water a swimmer pushes
- 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
- 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) sticky tape (d) yeast
- 38.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a long string (c) a balloon (d) two chairs
- 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
- 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
Answer key
- False
- vinegar
- not needed
- we keep it the same
- the rowing boat
- True
- the same string
- False
- False
- we keep it the same
- a drinking straw
- turmeric powder
- a battery cell
- we change it
- a mirror
- True
- how big we blow it
- forward
- False
- False
- the swimmer
- sticky tape
- goes backward
- throw them away safely
- goes forward
- distance it travels
- True
- a balloon
- a magnet
- we measure it
- the slope of the string
- needed
- it can pop loudly
- True
- water a swimmer pushes
- True
- yeast
- yeast
- a balloon rocket
- True
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