Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 450 · 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) less friction (c) it goes faster (d) no change at all
2. 2.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the balloon (d) the rocket
3. 3.⚖️ 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
4. 4.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) a magnet
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) the same straw (d) the same string
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.True or false: gas from the rocket goes forward. (a) True (b) False
9. 9.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rowing boat (d) water from the oars
10. 10.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
11. 11.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
12. 12.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
13. 13.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
14. 14.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
15. 15.True or false: a long string is needed for the balloon rocket. (a) True (b) False
16. 16.⚖️ 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
17. 17.⚖️ 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
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) two chairs (d) yeast
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same string (c) distance it travels (d) the same straw
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a balloon (d) yeast
23. 23.🧺 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
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
25. 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
26. 26.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
28. 28.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a drinking straw (d) a mirror
30. 30.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
31. 31.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a magnet (d) a mirror
36. 36.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the balloon (d) water from the oars
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
39. 39.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the balloon (d) the rocket
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far

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