Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 623 · 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 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
2. 2.True or false: water a swimmer pushes goes backward. (a) False (b) True
3. 3.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a drinking straw (d) vinegar
5. 5.⚖️ 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
6. 6.🔮 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
7. 7.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a mirror (d) a balloon
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
10. 10.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a battery cell (d) turmeric powder
11. 11.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
13. 13.⚖️ 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
14. 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
15. 15.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
16. 16.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
18. 18.True or false: water from the oars goes backward. (a) True (b) False
19. 19.True or false: the rowing boat goes forward. (a) True (b) False
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
21. 21.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
22. 22.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a balloon (d) vinegar
23. 23.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
24. 24.⚖️ 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 keep it the same (c) we measure it
25. 25.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same string (c) how big we blow it (d) distance it travels
27. 27.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a battery cell (d) vinegar
28. 28.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) gas from the rocket (d) the rowing boat
29. 29.🚀 Which of these goes forward? (a) the rocket (b) gas from the rocket (c) water a swimmer pushes (d) air from the balloon
30. 30.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water a swimmer pushes
31. 31.True or false: air from the balloon goes backward. (a) True (b) False
32. 32.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a long string (d) a magnet
34. 34.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
35. 35.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) two chairs (d) a balloon
37. 37.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
38. 38.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
39. 39.True or false: the rocket goes forward. (a) False (b) True
40. 40.⚖️ 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

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