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