Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 680 · 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 magnet for the balloon rocket? (a) needed (b) not needed
2. 2.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
4. 4.⚖️ 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
5. 5.True or false: gas from the rocket goes forward. (a) True (b) False
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) sticky tape (c) a long string (d) a balloon
7. 7.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the rocket
8. 8.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
9. 9.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
10. 10.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
11. 11.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) yeast (d) vinegar
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) two chairs (d) a magnet
15. 15.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a drinking straw (d) a balloon
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
18. 18.True or false: air from the balloon goes forward. (a) False (b) True
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) sticky tape (d) vinegar
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
21. 21.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) a drinking straw (d) a long string
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
24. 24.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
25. 25.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
26. 26.⚖️ 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 measure it (c) we keep it the same
27. 27.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it guides the balloon (d) it makes it heavier
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same straw (d) the slope of the string
29. 29.⚖️ 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
30. 30.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
31. 31.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
32. 32.True or false: air from the balloon goes backward. (a) True (b) False
33. 33.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) a magnet (d) a mirror
34. 34.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
35. 35.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
36. 36.True or false: water from the oars goes backward. (a) True (b) False
37. 37.⚖️ 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
38. 38.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the balloon
39. 39.True or false: water from the oars goes forward. (a) False (b) True
40. 40.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it

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