Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 68 · 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.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
3. 3.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
4. 4.🔮 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
5. 5.True or false: sticky tape is not 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 “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
8. 8.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
9. 9.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) sticky tape
11. 11.🔮 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
12. 12.⚖️ 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
13. 13.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
14. 14.True or false: the rocket goes forward. (a) False (b) True
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a mirror (d) a long string
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a balloon (d) vinegar
17. 17.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
18. 18.True or false: gas from the rocket goes forward. (a) False (b) True
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
20. 20.True or false: the balloon goes forward. (a) True (b) False
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
22. 22.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
23. 23.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
24. 24.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
25. 25.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) water from the oars (d) the swimmer
26. 26.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) a mirror (d) vinegar
28. 28.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
30. 30.⚖️ 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
31. 31.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
32. 32.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
36. 36.🚀 Which of these goes forward? (a) water from the oars (b) the balloon (c) air from the balloon (d) gas from the rocket
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
40. 40.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in

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