Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 647 · 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 vinegar for the balloon rocket? (a) needed (b) not needed
2. 2.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
4. 4.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the balloon
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
6. 6.⚖️ 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 straw
7. 7.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) two chairs (c) a long string (d) a balloon
9. 9.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the rocket
10. 10.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
11. 11.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
12. 12.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
13. 13.True or false: the rowing boat goes backward. (a) True (b) False
14. 14.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) yeast (d) a battery cell
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) a magnet (d) turmeric powder
16. 16.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a battery cell (d) two chairs
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
19. 19.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: gas from the rocket goes backward. (a) False (b) True
21. 21.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water from the oars (d) the rowing boat
22. 22.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
23. 23.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
24. 24.True or false: the rocket goes forward. (a) False (b) True
25. 25.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the slope of the string (c) distance it travels (d) the same tape
27. 27.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
28. 28.⚖️ 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
29. 29.⚖️ 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 measure it (c) we change it
30. 30.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) sticky tape (d) a balloon
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) sticky tape (d) a magnet
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
34. 34.⚖️ 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
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
36. 36.True or false: air from the balloon goes forward. (a) False (b) True
37. 37.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) yeast
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True

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