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.
NameDateTime takenScore ___ / 40
- 1.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
- 2.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
- 3.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
- 4.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
- 5.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
- 6.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
- 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same tape (c) the same string (d) how big we blow it
- 8.🚀 Which of these goes forward? (a) gas from the rocket (b) the rowing boat (c) air from the balloon (d) water from the oars
- 9.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) a long string (d) vinegar
- 10.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a battery cell (d) a balloon
- 11.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
- 12.True or false: the rocket goes forward. (a) False (b) True
- 13.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
- 14.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
- 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same straw (c) distance it travels (d) how big we blow it
- 16.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
- 17.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
- 18.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) sticky tape (d) yeast
- 19.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
- 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
- 21.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
- 22.True or false: water from the oars goes forward. (a) False (b) True
- 23.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
- 24.True or false: the rocket goes backward. (a) False (b) True
- 25.True or false: gas from the rocket goes forward. (a) False (b) True
- 26.⚖️ 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
- 27.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
- 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
- 29.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
- 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
- 31.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
- 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) turmeric powder (d) a balloon
- 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a balloon (d) yeast
- 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a magnet (d) sticky tape
- 35.⚖️ 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) distance it travels (c) the same string
- 36.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
- 37.True or false: the rowing boat goes forward. (a) True (b) False
- 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
- 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
- 40.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
Answer key
- we keep it the same
- True
- a balloon rocket
- True
- needed
- not needed
- distance it travels
- the rowing boat
- a long string
- a balloon
- True
- True
- needed
- when the air runs out
- how big we blow it
- it can pop loudly
- True
- yeast
- throw them away safely
- we change it
- needed
- False
- not needed
- False
- False
- True
- goes forward
- False
- more friction, less far
- the slope of the string
- False
- turmeric powder
- yeast
- a magnet
- the same string
- False
- True
- we keep it the same
- False
- goes forward
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids