Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 317 · 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.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a magnet (d) a balloon
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) a balloon (d) sticky tape
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a mirror (d) a long string
5. 5.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a mirror (d) yeast
7. 7.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
8. 8.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a drinking straw (d) turmeric powder
11. 11.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
12. 12.🎈 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
13. 13.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
14. 14.🛟 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
15. 15.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
16. 16.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rowing boat (d) the rocket
17. 17.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rocket (d) water a swimmer pushes
18. 18.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
24. 24.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the balloon (d) the rowing boat
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) sticky tape (d) a battery cell
26. 26.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the swimmer
27. 27.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the slope of the string (c) the same string (d) distance it travels
29. 29.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
30. 30.⚖️ 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 keep it the same (c) we change it
31. 31.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) air from the balloon (d) the balloon
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a battery cell (d) a balloon
35. 35.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) sticky tape (d) a balloon
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) yeast (d) two chairs
38. 38.True or false: yeast is needed for the balloon rocket. (a) True (b) False
39. 39.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a fridge magnet (d) a sundial

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