Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 330 · 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.🛟 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
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
3. 3.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) sticky tape (d) a drinking straw
6. 6.🛟 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
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) distance it travels (c) the same string (d) how big we blow it
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
9. 9.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
10. 10.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a magnet (d) two chairs
13. 13.⚖️ 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
14. 14.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) a drinking straw (d) two chairs
17. 17.True or false: air from the balloon goes forward. (a) True (b) False
18. 18.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
19. 19.⚖️ 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
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 change it (b) we keep it the same (c) we measure it
21. 21.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
23. 23.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
25. 25.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) air from the balloon (d) gas from the rocket
26. 26.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
27. 27.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) a mirror (d) sticky tape
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) yeast (d) two chairs
30. 30.⚖️ 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 change it (c) we keep it the same
31. 31.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
32. 32.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
33. 33.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
35. 35.True or false: gas from the rocket goes backward. (a) False (b) True
36. 36.True or false: the balloon goes forward. (a) False (b) True
37. 37.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
38. 38.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
39. 39.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) air from the balloon (d) the swimmer
40. 40.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed

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