Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 650 · 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: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
2. 2.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the rowing boat
3. 3.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the swimmer
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
5. 5.⚖️ 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
6. 6.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) two chairs (d) sticky tape
8. 8.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
11. 11.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
12. 12.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
13. 13.🔮 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
14. 14.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) how big we blow it (c) distance it travels (d) the slope of the string
16. 16.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a mirror (d) a battery cell
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a mirror (d) a long string
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a long string (d) two chairs
19. 19.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a long string (c) two chairs (d) a drinking straw
21. 21.True or false: air from the balloon goes backward. (a) True (b) False
22. 22.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
23. 23.True or false: a long string is needed for the balloon rocket. (a) False (b) True
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 balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rowing boat (d) the rocket
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
29. 29.True or false: the rocket goes backward. (a) True (b) False
30. 30.⚖️ 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
31. 31.True or false: the balloon goes backward. (a) True (b) False
32. 32.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the balloon (d) the rowing boat
33. 33.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
34. 34.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same string (c) distance it travels (d) the slope of the string
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
38. 38.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
39. 39.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a balloon (d) sticky tape

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