Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 75 · 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 backward? (a) the balloon (b) the swimmer (c) air from the balloon (d) the rowing boat
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.🛟 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
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a mirror (d) a drinking straw
6. 6.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
7. 7.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rowing boat (d) gas from the rocket
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a balloon (d) a magnet
9. 9.⚖️ 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) the slope of the string (c) distance it travels
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) vinegar (d) a battery cell
11. 11.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
12. 12.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
13. 13.True or false: the rocket goes backward. (a) False (b) True
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) a long string (d) a drinking straw
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a sundial (d) a fridge magnet
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) turmeric powder (c) a balloon (d) two chairs
20. 20.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
21. 21.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
25. 25.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
26. 26.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) sticky tape (d) a battery cell
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a battery cell (d) a mirror
29. 29.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
32. 32.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
33. 33.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
34. 34.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a mirror (c) turmeric powder (d) a battery cell
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) vinegar (d) a balloon
36. 36.True or false: water from the oars goes forward. (a) False (b) True
37. 37.⚖️ 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) False (b) True
38. 38.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) the same tape (d) how big we blow it
40. 40.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far

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