Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 480 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) vinegar (d) two chairs
2. 2.⚖️ 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
3. 3.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) a long string (d) a balloon
5. 5.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
6. 6.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) a mirror (d) a long string
7. 7.📘 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
8. 8.⚖️ 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
9. 9.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite
10. 10.⚖️ 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
11. 11.⚖️ 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
12. 12.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
13. 13.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a long string (d) two chairs
15. 15.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
16. 16.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
17. 17.True or false: water a swimmer pushes goes forward. (a) False (b) True
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
19. 19.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the rowing boat
20. 20.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) vinegar (d) two chairs
21. 21.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
22. 22.True or false: air from the balloon goes backward. (a) True (b) False
23. 23.True or false: water a swimmer pushes goes backward. (a) False (b) True
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
26. 26.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
27. 27.True or false: the rowing boat goes forward. (a) False (b) True
28. 28.True or false: gas from the rocket goes backward. (a) False (b) True
29. 29.🎈 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
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) sticky tape (d) a long string
31. 31.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
33. 33.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
34. 34.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) gas from the rocket (d) water from the oars
35. 35.True or false: gas from the rocket goes forward. (a) False (b) True
36. 36.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it speeds up (d) it goes backward first
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a magnet (c) sticky tape (d) a balloon
38. 38.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
39. 39.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
40. 40.True or false: a long string is not needed for the balloon rocket. (a) False (b) True

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