Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 125 · 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.⚖️ 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
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the same tape (d) the same straw
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a balloon (d) sticky tape
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) sticky tape (d) a long string
5. 5.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
6. 6.True or false: gas from the rocket goes backward. (a) True (b) False
7. 7.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) straight down (d) it stays still
8. 8.True or false: the rowing boat goes forward. (a) False (b) True
9. 9.True or false: a balloon 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) a drinking straw (c) sticky tape (d) two chairs
11. 11.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
12. 12.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same straw (d) the same string
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a drinking straw (d) yeast
16. 16.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
17. 17.True or false: water a swimmer pushes goes backward. (a) True (b) False
18. 18.⚖️ 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) True (b) False
19. 19.🎈 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
20. 20.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
21. 21.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
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 keep it the same (b) we measure it (c) we change it
23. 23.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) gas from the rocket (d) the balloon
24. 24.True or false: water from the oars goes forward. (a) False (b) True
25. 25.⚖️ 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
26. 26.True or false: yeast is needed for the balloon rocket. (a) True (b) False
27. 27.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) turmeric powder (d) two chairs
29. 29.⚖️ 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 slope of the string
30. 30.True or false: the rowing boat goes backward. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) a balloon (d) two chairs
33. 33.True or false: air from the balloon goes forward. (a) True (b) False
34. 34.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
35. 35.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
36. 36.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the swimmer (d) water a swimmer pushes
37. 37.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
39. 39.True or false: water from the oars goes backward. (a) False (b) True
40. 40.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed

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