Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 682 · 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.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
2. 2.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
5. 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. 6.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
8. 8.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
9. 9.True or false: water from the oars goes forward. (a) True (b) False
10. 10.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
11. 11.True or false: the balloon goes forward. (a) True (b) False
12. 12.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
13. 13.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
14. 14.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a long string (d) turmeric powder
16. 16.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
17. 17.True or false: water from the oars goes backward. (a) False (b) True
18. 18.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
19. 19.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
20. 20.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
21. 21.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) a battery cell
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) two chairs (d) a long string
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
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.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the swimmer (d) the balloon
28. 28.⚖️ 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 measure it (c) we keep it the same
29. 29.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) two chairs (c) a magnet (d) a battery cell
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) two chairs (d) a balloon
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a magnet (c) a balloon (d) two chairs
32. 32.True or false: the rocket goes forward. (a) False (b) True
33. 33.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) two chairs (d) a balloon
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
36. 36.🧺 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
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the slope of the string (c) the same string (d) distance it travels
40. 40.⚖️ 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) the same string (c) distance it travels

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