Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 936 · 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.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
2. 2.⚖️ 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
3. 3.True or false: gas from the rocket goes backward. (a) True (b) False
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) a mirror
5. 5.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) no change at all (d) less friction
6. 6.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
7. 7.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rocket (d) air from the balloon
8. 8.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same string (c) how big we blow it (d) the same straw
10. 10.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
11. 11.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
12. 12.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the rowing boat (d) water from the oars
13. 13.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) vinegar (d) two chairs
14. 14.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) yeast (d) a long string
17. 17.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
18. 18.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
20. 20.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
21. 21.🔮 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
22. 22.True or false: water a swimmer pushes goes backward. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
24. 24.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
26. 26.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
27. 27.⚖️ 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) False (b) True
28. 28.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
29. 29.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) water a swimmer pushes (d) water from the oars
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) turmeric powder (d) sticky tape
31. 31.True or false: the rowing boat goes backward. (a) False (b) True
32. 32.True or false: the rocket goes forward. (a) True (b) False
33. 33.🛟 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
34. 34.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 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) a magnet
36. 36.⚖️ 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
37. 37.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
39. 39.True or false: gas from the rocket goes forward. (a) True (b) False
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) sticky tape (d) a magnet

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