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