Balloon Rocket STEM Worksheet

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

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