Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 613 · 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.⚖️ 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
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
3. 3.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
5. 5.True or false: air from the balloon goes forward. (a) False (b) True
6. 6.True or false: gas from the rocket goes forward. (a) True (b) False
7. 7.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
8. 8.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
9. 9.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
10. 10.🔮 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
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) True (b) False
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) sticky tape (d) a magnet
13. 13.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) gas from the rocket (d) water a swimmer pushes
14. 14.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
15. 15.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) put string round a neck (d) blow it till it bursts
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
17. 17.True or false: the rocket goes backward. (a) False (b) True
18. 18.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rocket (c) air from the balloon (d) gas from the rocket
19. 19.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
23. 23.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) water from the oars (d) the rowing boat
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a drinking straw (d) two chairs
25. 25.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) air from the balloon (d) water from the oars
26. 26.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) a balloon (d) a drinking straw
28. 28.⚖️ 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 same string (c) the slope of the string (d) distance it travels
29. 29.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
30. 30.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a mirror (d) sticky tape
32. 32.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
33. 33.⚖️ 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 measure it (c) we keep it the same
34. 34.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) turmeric powder
36. 36.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it holds water (d) it blows air in
37. 37.True or false: the rowing boat goes backward. (a) False (b) True
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a drinking straw (d) a long string
39. 39.True or false: a long string is needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ 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

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