Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 552 · 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: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
2. 2.⚖️ 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
3. 3.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the swimmer (d) the rowing boat
4. 4.⚖️ 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 measure it (c) we change it
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same string (c) how big we blow it (d) the slope of the string
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) sticky tape (d) turmeric powder
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) two chairs (d) a balloon
8. 8.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
9. 9.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the straw is heavy (d) the string pulls it
10. 10.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
11. 11.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
17. 17.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
18. 18.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
19. 19.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
20. 20.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a magnet (d) a long string
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) a magnet (d) yeast
23. 23.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) sticky tape (d) yeast
24. 24.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
25. 25.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
26. 26.True or false: gas from the rocket goes backward. (a) True (b) False
27. 27.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
28. 28.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
29. 29.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
30. 30.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a mirror (d) a balloon rocket
34. 34.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) air from the balloon (d) the rocket
35. 35.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the rocket (d) gas from the rocket
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) how big we blow it (c) distance it travels
37. 37.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) a balloon (d) a mirror
38. 38.True or false: the balloon goes backward. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
40. 40.True or false: a long string is needed for the balloon rocket. (a) False (b) True

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