Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 140 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a long string (d) vinegar
2. 2.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) the string pulls it (d) escaping air pushes it
3. 3.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) sticky tape (d) a magnet
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a balloon (d) a battery cell
9. 9.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
10. 10.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) gas from the rocket (d) water from the oars
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) two chairs (d) yeast
12. 12.True or false: gas from the rocket goes forward. (a) True (b) False
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
15. 15.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
16. 16.⚖️ 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
17. 17.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
18. 18.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) two chairs (c) a balloon (d) a long string
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
21. 21.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
22. 22.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
24. 24.⚖️ 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
25. 25.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
26. 26.True or false: gas from the rocket goes backward. (a) False (b) True
27. 27.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) air from the balloon (d) the rocket
28. 28.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
29. 29.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
30. 30.⚖️ 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
31. 31.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
32. 32.⚖️ 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) True (b) False
33. 33.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
35. 35.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
36. 36.True or false: the rocket goes forward. (a) True (b) False
37. 37.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) it never stops (d) when it turns blue
38. 38.🎈 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
39. 39.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
40. 40.True or false: two chairs is needed for the balloon rocket. (a) False (b) True

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