Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 338 · 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.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
4. 4.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rowing boat (d) the rocket
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a drinking straw (d) a magnet
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a long string (d) sticky tape
7. 7.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
9. 9.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
10. 10.⚖️ 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 change it (c) we measure it
11. 11.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
13. 13.⚖️ 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
14. 14.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
15. 15.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
16. 16.⚖️ 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
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
18. 18.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.⚖️ 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
21. 21.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
23. 23.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
25. 25.🔮 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
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) sticky tape (d) a drinking straw
27. 27.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
28. 28.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) water a swimmer pushes (d) gas from the rocket
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) a balloon (d) a drinking straw
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 straw (b) the same string (c) the same tape (d) how big we blow it
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) a balloon (d) a long string
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
34. 34.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
35. 35.True or false: the balloon goes forward. (a) True (b) False
36. 36.⚖️ 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 string (c) distance it travels
37. 37.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
39. 39.True or false: the balloon goes backward. (a) False (b) True
40. 40.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward

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