Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 73 · 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 forward? (a) gas from the rocket (b) water from the oars (c) water a swimmer pushes (d) the rocket
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a drinking straw (d) turmeric powder
3. 3.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same straw (c) distance it travels (d) the slope of the string
7. 7.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the rowing boat (d) the rocket
8. 8.⚖️ 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
9. 9.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a balloon (d) sticky tape
11. 11.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
12. 12.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) turmeric powder (d) a battery cell
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) sticky tape (d) a long string
14. 14.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
15. 15.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a drinking straw (d) a battery cell
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
18. 18.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
19. 19.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
20. 20.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) vinegar (c) a magnet (d) a mirror
22. 22.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the swimmer (d) the rocket
23. 23.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
25. 25.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
26. 26.True or false: the rocket goes forward. (a) False (b) True
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
28. 28.🔮 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
29. 29.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a mirror (c) a balloon (d) a drinking straw
32. 32.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a long string (c) vinegar (d) a battery cell
33. 33.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the swimmer (d) the rocket
34. 34.True or false: water a swimmer pushes goes forward. (a) False (b) True
35. 35.True or false: air from the balloon goes backward. (a) True (b) False
36. 36.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
37. 37.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
38. 38.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) escaping air pushes it (d) the string pulls it
39. 39.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
40. 40.True or false: the rowing boat goes backward. (a) True (b) False

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