Balloon Rocket STEM Worksheet

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

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