Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 722 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) vinegar (d) two chairs
3. 3.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
5. 5.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
6. 6.🔮 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
7. 7.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the swimmer
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a battery cell (d) sticky tape
10. 10.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) yeast (d) a balloon
12. 12.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
14. 14.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) turmeric powder (d) two chairs
16. 16.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
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 magnet (d) a balloon
18. 18.🔮 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
19. 19.⚖️ 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
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a magnet (d) sticky tape
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same tape (c) distance it travels (d) the slope of the string
22. 22.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
23. 23.True or false: air from the balloon goes backward. (a) False (b) True
24. 24.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
26. 26.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
27. 27.⚖️ 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
28. 28.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a balloon (d) a battery cell
30. 30.🚀 Which of these goes backward? (a) water from the oars (b) the rowing boat (c) the balloon (d) the swimmer
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
33. 33.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the rocket
34. 34.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
35. 35.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
36. 36.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
37. 37.True or false: water a swimmer pushes goes backward. (a) False (b) True
38. 38.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it holds water (d) it blows air in
39. 39.True or false: yeast is needed for the balloon rocket. (a) True (b) False
40. 40.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the swimmer (d) water a swimmer pushes

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