Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 786 · 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.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
2. 2.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) air from the balloon (d) water from the oars
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) a balloon (d) a battery cell
4. 4.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
5. 5.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
6. 6.⚖️ 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
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
9. 9.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
10. 10.⚖️ 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 tape
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same tape (c) distance it travels (d) the same straw
12. 12.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it blows air in (d) it makes it heavier
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
14. 14.True or false: water a swimmer pushes goes backward. (a) False (b) True
15. 15.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
16. 16.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
17. 17.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) sticky tape (d) two chairs
19. 19.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
20. 20.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) air from the balloon
21. 21.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
22. 22.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
23. 23.True or false: the rocket goes backward. (a) False (b) True
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
25. 25.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the swimmer (d) the balloon
26. 26.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
27. 27.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.⚖️ 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
30. 30.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
31. 31.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
32. 32.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
34. 34.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a balloon (d) a drinking straw
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) a balloon (d) a long string
37. 37.True or false: air from the balloon goes backward. (a) True (b) False
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
40. 40.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed

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