Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 292 · 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 use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
2. 2.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) gas from the rocket
3. 3.True or false: the balloon goes forward. (a) False (b) True
4. 4.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
6. 6.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
7. 7.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) vinegar (c) two chairs (d) a balloon
9. 9.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
10. 10.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
11. 11.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
12. 12.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) water a swimmer pushes (d) the balloon
15. 15.⚖️ 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
16. 16.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a balloon (c) a battery cell (d) vinegar
17. 17.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) throw them away safely (d) give them to a baby
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a magnet (d) a drinking straw
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same tape (d) the slope of the string
20. 20.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
25. 25.⚖️ 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
26. 26.⚖️ 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 slope of the string
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) yeast (d) sticky tape
28. 28.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when it gets cold (d) when the air runs out
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
30. 30.🚀 Which of these goes backward? (a) water from the oars (b) the swimmer (c) the rowing boat (d) the rocket
31. 31.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) a magnet (d) a long string
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
34. 34.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.True or false: gas from the rocket goes backward. (a) True (b) False
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) sticky tape (d) vinegar
39. 39.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
40. 40.True or false: water from the oars goes forward. (a) False (b) True

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