Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 795 · 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.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
3. 3.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) how big we blow it (c) the same straw (d) the same string
5. 5.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) water from the oars (d) water a swimmer pushes
6. 6.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water from the oars
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) vinegar
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) two chairs (d) yeast
9. 9.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
10. 10.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
11. 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
12. 12.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
14. 14.True or false: air from the balloon goes forward. (a) False (b) True
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.True or false: the rowing boat goes backward. (a) False (b) True
17. 17.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) a drinking straw (d) a mirror
19. 19.True or false: the balloon goes backward. (a) True (b) False
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
21. 21.True or false: air from the balloon goes backward. (a) False (b) True
22. 22.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
23. 23.📘 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
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 same string (c) the slope of the string (d) how big we blow it
25. 25.⚖️ 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
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) two chairs (c) sticky tape (d) a balloon
27. 27.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) two chairs (c) a mirror (d) vinegar
28. 28.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
29. 29.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the swimmer (d) water a swimmer pushes
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) vinegar (d) yeast
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
35. 35.🛟 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
36. 36.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) turmeric powder (c) two chairs (d) sticky tape
38. 38.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
39. 39.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the balloon (d) air from the balloon
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) yeast (d) two chairs

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