Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 700 · 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.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a drinking straw (d) sticky tape
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) sticky tape (d) a balloon
4. 4.True or false: water a swimmer pushes goes forward. (a) True (b) False
5. 5.🔮 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
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
8. 8.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
9. 9.⚖️ 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
10. 10.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water a swimmer pushes (d) the rocket
11. 11.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
12. 12.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a mirror (d) sticky tape
13. 13.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
14. 14.⚖️ 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 straw (c) distance it travels
15. 15.⚖️ 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) distance it travels (c) how big we blow it (d) the same straw
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 keep it the same (c) we measure it
17. 17.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
18. 18.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) distance it travels (d) the same straw
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a drinking straw (d) a long string
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
22. 22.True or false: the balloon goes forward. (a) True (b) False
23. 23.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the balloon (d) gas from the rocket
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) two chairs (d) a mirror
25. 25.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
26. 26.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
27. 27.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it turns blue (d) when it gets cold
28. 28.⚖️ 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
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a balloon (d) turmeric powder
30. 30.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
31. 31.⚖️ 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
32. 32.True or false: air from the balloon goes forward. (a) False (b) True
33. 33.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
34. 34.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
37. 37.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
38. 38.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the balloon (d) the rocket
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a battery cell (d) a balloon

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