Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 180 · 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) it goes faster (b) no change at all (c) more friction, less far (d) less friction
2. 2.⚖️ 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) distance it travels (c) the same string (d) the slope of the string
3. 3.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) a magnet (d) sticky tape
5. 5.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
6. 6.⚖️ 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
7. 7.⚖️ 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 measure it (c) we change it
8. 8.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
9. 9.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
10. 10.True or false: air from the balloon goes forward. (a) True (b) False
11. 11.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
12. 12.⚖️ 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 slope of the string (d) how big we blow it
13. 13.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
14. 14.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
15. 15.⚖️ 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
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
17. 17.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) air from the balloon
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) two chairs (d) a mirror
19. 19.⚖️ 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
20. 20.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
22. 22.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the rowing boat
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 change it (b) we measure it (c) we keep it the same
24. 24.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a drinking straw (d) a magnet
26. 26.⚖️ 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
27. 27.True or false: the balloon goes backward. (a) False (b) True
28. 28.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
29. 29.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
30. 30.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
31. 31.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) straight down (d) it stays still
32. 32.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
33. 33.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
34. 34.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
36. 36.True or false: water from the oars goes backward. (a) False (b) True
37. 37.📘 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
38. 38.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
39. 39.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ 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

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