Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 653 · 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.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
2. 2.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
4. 4.True or false: the balloon goes backward. (a) True (b) False
5. 5.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) gas from the rocket (d) air from the balloon
6. 6.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a drinking straw (d) a mirror
8. 8.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
9. 9.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
11. 11.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
12. 12.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
13. 13.🛟 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
14. 14.⚖️ 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
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
16. 16.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the swimmer (d) gas from the rocket
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a long string (d) turmeric powder
19. 19.⚖️ 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
20. 20.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) gas from the rocket (d) water a swimmer pushes
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the slope of the string (c) distance it travels (d) how big we blow it
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
24. 24.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
25. 25.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
28. 28.True or false: gas from the rocket goes backward. (a) False (b) True
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
30. 30.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
31. 31.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a balloon (d) a battery cell
33. 33.⚖️ 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) the same tape (c) distance it travels (d) the same straw
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a battery cell (d) sticky tape
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) vinegar (d) a long string
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
40. 40.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed

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