Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 220 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
2. 2.🎈 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
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
4. 4.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
5. 5.⚖️ 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
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) a battery cell
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a mirror (d) sticky tape
10. 10.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) a long string (d) two chairs
12. 12.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) a long string (d) sticky tape
14. 14.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
15. 15.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
16. 16.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ 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
18. 18.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
19. 19.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) distance it travels (c) how big we blow it (d) the same straw
22. 22.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the swimmer (d) gas from the rocket
23. 23.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a mirror (c) a battery cell (d) a long string
24. 24.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a long string (d) vinegar
25. 25.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
26. 26.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
27. 27.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the swimmer (d) the rocket
28. 28.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the balloon
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a long string (d) a balloon
30. 30.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
31. 31.True or false: the balloon goes forward. (a) False (b) True
32. 32.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
34. 34.True or false: the swimmer goes backward. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a magnet (d) sticky tape
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a drinking straw (d) a battery cell
38. 38.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the rowing boat
39. 39.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a magnet (d) turmeric powder
40. 40.True or false: yeast is needed for the balloon rocket. (a) True (b) False

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