Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 101 · 40 questions

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.

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

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