Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 950 · 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.⚖️ 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 keep it the same (c) we measure it
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a balloon (d) a mirror
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
4. 4.🔮 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
5. 5.True or false: gas from the rocket goes forward. (a) True (b) False
6. 6.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
7. 7.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
8. 8.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
9. 9.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) the string pulls it (d) a magnet pulls it
10. 10.⚖️ 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
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) sticky tape (d) a magnet
13. 13.⚖️ 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
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
16. 16.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
17. 17.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
18. 18.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a battery cell (d) sticky tape
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a long string (d) turmeric powder
21. 21.⚖️ 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 tape (c) how big we blow it (d) the slope of the string
22. 22.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
23. 23.⚖️ 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) False (b) True
24. 24.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
25. 25.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.True or false: water a swimmer pushes goes backward. (a) False (b) True
29. 29.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
30. 30.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the swimmer (d) water a swimmer pushes
31. 31.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) vinegar
33. 33.True or false: the balloon goes backward. (a) True (b) False
34. 34.True or false: water from the oars goes backward. (a) False (b) True
35. 35.True or false: the rocket goes backward. (a) False (b) True
36. 36.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
37. 37.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) sticky tape (d) a mirror

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