Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 346 · 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.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
2. 2.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
3. 3.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a magnet (c) vinegar (d) a mirror
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) two chairs (d) yeast
7. 7.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) water a swimmer pushes (d) the rocket
10. 10.True or false: air from the balloon goes forward. (a) True (b) False
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a battery cell (d) two chairs
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
14. 14.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) gas from the rocket
15. 15.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) water from the oars (d) air from the balloon
18. 18.🛟 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
19. 19.True or false: the rocket goes backward. (a) True (b) False
20. 20.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
21. 21.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
25. 25.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
27. 27.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the rowing boat (d) the rocket
28. 28.True or false: the rowing boat goes forward. (a) False (b) True
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a mirror (c) two chairs (d) sticky tape
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) how big we blow it (c) the same tape (d) distance it travels
31. 31.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the slope of the string (c) the same tape (d) distance it travels
35. 35.⚖️ 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) the same tape (c) distance it travels
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a balloon (d) yeast
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) sticky tape (d) vinegar
40. 40.🎈 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

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