Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 608 · 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 backward? (a) the rowing boat (b) the rocket (c) gas from the rocket (d) the balloon
2. 2.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
3. 3.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
5. 5.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a long string (d) two chairs
7. 7.True or false: gas from the rocket goes forward. (a) False (b) True
8. 8.True or false: water a swimmer pushes goes backward. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the slope of the string (d) how big we blow it
12. 12.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) water a swimmer pushes (d) the rocket
13. 13.True or false: the rowing boat goes forward. (a) False (b) True
14. 14.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
15. 15.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (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 balloon (b) sticky tape (c) a drinking straw (d) a magnet
17. 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a magnet (d) two chairs
19. 19.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a balloon (d) turmeric powder
21. 21.True or false: the balloon goes forward. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.⚖️ 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 string (c) distance it travels (d) the same tape
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) vinegar (d) sticky tape
27. 27.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) two chairs (d) sticky tape
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
30. 30.⚖️ 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
31. 31.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) sticky tape (d) two chairs
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
39. 39.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
40. 40.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby

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