Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 876 · 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: how big we blow it is the one thing we change. (a) True (b) False
2. 2.🛟 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
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.⚖️ 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 keep it the same (c) we change it
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) a long string (d) two chairs
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
8. 8.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a drinking straw (d) a mirror
10. 10.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) water a swimmer pushes (d) air from the balloon
11. 11.True or false: water from the oars goes forward. (a) False (b) True
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
13. 13.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the rocket
14. 14.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
15. 15.🔮 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
16. 16.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
17. 17.True or false: the swimmer goes backward. (a) True (b) False
18. 18.True or false: air from the balloon goes forward. (a) False (b) True
19. 19.True or false: water from the oars goes backward. (a) True (b) False
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) yeast
21. 21.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
23. 23.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
24. 24.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
25. 25.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) gas from the rocket (d) the balloon
26. 26.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) escaping air pushes it (d) a magnet pulls it
27. 27.True or false: the balloon goes forward. (a) True (b) False
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a magnet (d) two chairs
29. 29.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) air from the balloon (d) the swimmer
30. 30.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
31. 31.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
32. 32.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ 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 string
35. 35.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
36. 36.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
37. 37.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
38. 38.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the slope of the string (d) the same tape
40. 40.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward

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