Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 681 · 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.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) a drinking straw (d) a magnet
5. 5.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
6. 6.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the rocket (d) the rowing boat
7. 7.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
9. 9.⚖️ 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
10. 10.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
11. 11.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ 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 change it (c) we measure it
13. 13.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
15. 15.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
16. 16.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) water from the oars (d) water a swimmer pushes
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) two chairs (b) yeast (c) sticky tape (d) a balloon
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
20. 20.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
21. 21.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same tape
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a battery cell (d) sticky tape
24. 24.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
26. 26.⚖️ 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 straw (d) the same string
27. 27.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) water a swimmer pushes (d) the rocket
28. 28.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
29. 29.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
30. 30.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) the same tape (d) how big we blow it
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) a balloon (d) sticky tape
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
34. 34.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) a magnet (d) a balloon
35. 35.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
36. 36.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
37. 37.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
38. 38.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
39. 39.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
40. 40.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it guides the balloon (d) it makes it heavier

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