Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 987 · 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 a long string for the balloon rocket? (a) needed (b) not needed
2. 2.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a long string (d) two chairs
4. 4.⚖️ 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 same string (c) distance it travels
5. 5.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
6. 6.⚖️ 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) how big we blow it (d) the same straw
7. 7.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) vinegar (d) a drinking straw
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a magnet (d) a drinking straw
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two chairs (d) a mirror
11. 11.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) distance it travels (d) the slope of the string
15. 15.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the swimmer (d) the balloon
16. 16.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
19. 19.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
20. 20.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
21. 21.🛟 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
22. 22.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) it never stops (d) when it gets cold
23. 23.🚀 In “push back, move forward”, which way does water from the oars 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 string is the one thing we change. (a) True (b) False
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
26. 26.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a mirror (d) a balloon
27. 27.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a magnet (d) a drinking straw
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.True or false: the swimmer goes backward. (a) True (b) False
31. 31.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
32. 32.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
33. 33.⚖️ 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 change it (c) we keep it the same
34. 34.⚖️ 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
35. 35.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) turmeric powder (c) a drinking straw (d) two chairs
37. 37.⚖️ 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
38. 38.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the rowing boat
39. 39.🚀 Which of these goes backward? (a) water from the oars (b) the rowing boat (c) the balloon (d) the rocket
40. 40.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the rowing boat (d) water from the oars

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