Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 939 · 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.True or false: air from the balloon goes backward. (a) False (b) True
2. 2.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
3. 3.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) yeast (d) a long string
5. 5.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
7. 7.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
8. 8.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
9. 9.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same string (c) distance it travels (d) the same straw
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) vinegar
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a magnet (d) a drinking straw
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a mirror (d) a drinking straw
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) a drinking straw (d) a long string
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.True or false: the rocket goes backward. (a) True (b) False
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) vinegar (d) sticky tape
20. 20.True or false: the rowing boat goes forward. (a) False (b) True
21. 21.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
24. 24.True or false: the swimmer goes forward. (a) False (b) True
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a drinking straw (d) a battery cell
26. 26.True or false: the rowing boat goes backward. (a) False (b) True
27. 27.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it turns blue (d) when it gets cold
28. 28.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
30. 30.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) a drinking straw (d) a balloon
32. 32.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it guides the balloon (d) it holds water
33. 33.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.True or false: air from the balloon goes forward. (a) False (b) True
38. 38.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
39. 39.🚀 Which of these goes forward? (a) the rocket (b) water a swimmer pushes (c) water from the oars (d) air from the balloon
40. 40.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) yeast (d) a mirror

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