Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 913 · 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 gas from the rocket go? (a) goes backward (b) goes forward
2. 2.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a drinking straw (d) a balloon
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) sticky tape (d) yeast
5. 5.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
6. 6.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
7. 7.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
8. 8.⚖️ 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
9. 9.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
10. 10.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
11. 11.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) sticky tape (d) vinegar
14. 14.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
15. 15.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
16. 16.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rocket (d) the rowing boat
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a mirror (d) sticky tape
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) a drinking straw (d) turmeric powder
19. 19.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the swimmer (d) the rocket
20. 20.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
21. 21.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
22. 22.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
23. 23.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) air from the balloon (d) water from the oars
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) vinegar (d) a magnet
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
26. 26.True or false: the swimmer goes backward. (a) False (b) True
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a mirror (d) a magnet
28. 28.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.⚖️ 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 keep it the same (c) we change it
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
32. 32.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
33. 33.🛟 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
34. 34.🧺 Do we need sticky tape 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) sticky tape (c) a drinking straw (d) turmeric powder
36. 36.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
37. 37.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
38. 38.⚖️ 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
39. 39.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
40. 40.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly

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