Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 208 · 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.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it speeds up (d) it goes backward first
2. 2.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
3. 3.🚀 Which of these goes forward? (a) the rowing boat (b) air from the balloon (c) gas from the rocket (d) water a swimmer pushes
4. 4.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
5. 5.True or false: water a swimmer pushes goes forward. (a) True (b) False
6. 6.⚖️ 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
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) yeast (d) a long string
8. 8.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
9. 9.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
10. 10.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
11. 11.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
12. 12.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) gas from the rocket (d) the rowing boat
13. 13.True or false: yeast is needed for the balloon rocket. (a) False (b) True
14. 14.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the rowing boat (d) the swimmer
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) yeast (d) two chairs
16. 16.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) yeast
19. 19.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the balloon (d) the rowing boat
20. 20.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
21. 21.⚖️ 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) distance it travels (d) the same straw
22. 22.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
23. 23.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
24. 24.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
25. 25.⚖️ 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 change it (c) we measure it
26. 26.⚖️ 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
27. 27.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
28. 28.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) when it turns blue (d) it never stops
29. 29.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
30. 30.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rocket (d) water from the oars
31. 31.True or false: water from the oars goes forward. (a) False (b) True
32. 32.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) turmeric powder (d) two chairs
34. 34.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) yeast (d) a long string
37. 37.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a balloon (d) vinegar
39. 39.⚖️ 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
40. 40.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward

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