Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 937 · 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.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the balloon
2. 2.🚀 Which of these goes backward? (a) water from the oars (b) the swimmer (c) the rocket (d) the balloon
3. 3.True or false: air from the balloon goes backward. (a) True (b) False
4. 4.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
5. 5.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
6. 6.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) a balloon (d) two chairs
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) distance it travels (d) the same straw
10. 10.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
11. 11.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
12. 12.True or false: the swimmer goes forward. (a) False (b) True
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
14. 14.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
15. 15.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
17. 17.True or false: the rocket goes forward. (a) True (b) False
18. 18.True or false: a long string 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) a battery cell (c) a balloon (d) two chairs
20. 20.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
21. 21.⚖️ 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
22. 22.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rocket (d) gas from the rocket
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a drinking straw (d) a mirror
24. 24.⚖️ 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
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a long string (d) a balloon
27. 27.⚖️ 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
28. 28.⚖️ 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 change it (c) we measure it
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a drinking straw (d) a mirror
30. 30.⚖️ 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
31. 31.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
32. 32.🔮 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
33. 33.⚖️ 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
34. 34.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: the balloon goes forward. (a) False (b) True
36. 36.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) yeast (c) vinegar (d) turmeric powder
38. 38.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) air from the balloon (d) the rowing boat
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a drinking straw (d) yeast
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string

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