Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 698 · 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 long string (b) a magnet (c) sticky tape (d) a balloon
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rocket (d) water from the oars
8. 8.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
9. 9.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) yeast (d) a drinking straw
10. 10.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) sticky tape (d) turmeric powder
12. 12.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
13. 13.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) keep them in your mouth (d) throw them away safely
14. 14.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a battery cell (d) a balloon
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) two chairs (d) a balloon
17. 17.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a long string (d) yeast
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a drinking straw (d) a balloon
20. 20.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a balloon (c) a drinking straw (d) sticky tape
23. 23.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the swimmer (d) gas from the rocket
24. 24.True or false: the balloon goes forward. (a) False (b) True
25. 25.True or false: air from the balloon goes forward. (a) True (b) False
26. 26.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the balloon (d) the swimmer
27. 27.⚖️ 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
28. 28.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
30. 30.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
31. 31.⚖️ 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
32. 32.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
33. 33.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
34. 34.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
36. 36.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.🚀 Which of these goes backward? (a) the swimmer (b) gas from the rocket (c) the rowing boat (d) the balloon
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
40. 40.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a battery cell (c) vinegar (d) yeast

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