Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 356 · 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.True or false: the rocket goes backward. (a) False (b) True
2. 2.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
3. 3.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
4. 4.True or false: the swimmer goes forward. (a) True (b) False
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) water a swimmer pushes
8. 8.⚖️ 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 change it (c) we keep it the same
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a magnet (d) sticky tape
10. 10.True or false: water a swimmer pushes goes backward. (a) False (b) True
11. 11.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
13. 13.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) gas from the rocket (d) water from the oars
14. 14.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) a long string (d) two chairs
16. 16.True or false: the rowing boat goes backward. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the slope of the string (c) distance it travels (d) the same string
18. 18.True or false: water from the oars goes forward. (a) False (b) True
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a battery cell (d) a balloon
20. 20.True or false: a long string is needed for the balloon rocket. (a) False (b) True
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) vinegar (d) a mirror
22. 22.True or false: air from the balloon goes forward. (a) False (b) True
23. 23.True or false: water from the oars goes backward. (a) True (b) False
24. 24.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
25. 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) two chairs (d) a long string
27. 27.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when the air runs out (d) when it turns blue
28. 28.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the swimmer (d) air from the balloon
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
30. 30.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) water a swimmer pushes (d) gas from the rocket
31. 31.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the slope of the string
33. 33.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
35. 35.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a long string (d) a balloon
38. 38.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
40. 40.🧺 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

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