Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 732 · 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: the same string is kept the same. (a) False (b) True
2. 2.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
3. 3.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
4. 4.🔮 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
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a magnet (d) a long string
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
8. 8.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a long string (d) two chairs
10. 10.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the rocket (d) air from the balloon
11. 11.⚖️ 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) how big we blow it (c) distance it travels (d) the slope of the string
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) two chairs (d) a long string
14. 14.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) a long string (d) two chairs
16. 16.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) a balloon (d) two chairs
20. 20.⚖️ 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
21. 21.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
22. 22.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
23. 23.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
24. 24.⚖️ 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
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
26. 26.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
27. 27.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
28. 28.True or false: the rocket goes forward. (a) False (b) True
29. 29.True or false: water a swimmer pushes goes backward. (a) True (b) False
30. 30.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
31. 31.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
32. 32.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
34. 34.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) a long string (d) a balloon
36. 36.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
38. 38.True or false: water a swimmer pushes goes forward. (a) False (b) True
39. 39.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) gas from the rocket
40. 40.🎈 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

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