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