Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 270 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) two chairs (d) a balloon
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
3. 3.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
4. 4.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
5. 5.⚖️ 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 slope of the string (c) distance it travels
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) yeast (d) two chairs
7. 7.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
8. 8.True or false: gas from the rocket goes backward. (a) False (b) True
9. 9.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a long string (d) a balloon
11. 11.True or false: the rowing boat goes backward. (a) True (b) False
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
13. 13.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
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 change it (c) we keep it the same
15. 15.⚖️ 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 straw
16. 16.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) a magnet
18. 18.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
19. 19.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
20. 20.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
22. 22.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
25. 25.⚖️ 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
26. 26.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) water a swimmer pushes
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.True or false: water from the oars goes forward. (a) True (b) False
29. 29.True or false: water from the oars goes backward. (a) False (b) True
30. 30.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
31. 31.True or false: air from the balloon goes forward. (a) False (b) True
32. 32.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) yeast (d) a long string
33. 33.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) yeast (d) sticky tape
35. 35.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
36. 36.🛟 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
37. 37.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a battery cell (d) a drinking straw
39. 39.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up

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