Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 628 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) yeast (d) sticky tape
2. 2.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
3. 3.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
4. 4.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same string (c) how big we blow it (d) the same straw
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a mirror (d) a drinking straw
10. 10.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
12. 12.⚖️ 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
13. 13.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water a swimmer pushes (d) the swimmer
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) two chairs (d) sticky tape
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) two chairs (d) a balloon
16. 16.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
17. 17.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
18. 18.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (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 change it (c) we keep it the same
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
25. 25.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) yeast (c) a balloon (d) a drinking straw
28. 28.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
29. 29.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rocket (d) the rowing boat
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a battery cell (d) a long string
31. 31.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
34. 34.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ 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
36. 36.🚀 Which of these goes backward? (a) water from the oars (b) the swimmer (c) the balloon (d) the rocket
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a battery cell (d) vinegar
38. 38.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
40. 40.True or false: water a swimmer pushes goes backward. (a) True (b) False

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