Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 731 · 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? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
2. 2.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) turmeric powder
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a drinking straw (c) two chairs (d) a balloon
5. 5.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
6. 6.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
7. 7.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
8. 8.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a long string (c) a balloon (d) two chairs
10. 10.⚖️ 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
11. 11.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
12. 12.True or false: the rowing boat goes forward. (a) True (b) False
13. 13.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
14. 14.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the balloon (d) the rocket
15. 15.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) gas from the rocket (d) the rocket
16. 16.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) vinegar (d) a drinking straw
18. 18.True or false: gas from the rocket goes forward. (a) True (b) False
19. 19.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
20. 20.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
21. 21.🔮 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
22. 22.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) gas from the rocket (d) the rocket
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
25. 25.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
26. 26.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same tape (c) how big we blow it (d) the same string
28. 28.⚖️ 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 measure it (c) we change it
29. 29.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
30. 30.True or false: air from the balloon goes forward. (a) False (b) True
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) yeast (d) two chairs
32. 32.True or false: water a swimmer pushes goes backward. (a) True (b) False
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
34. 34.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: the rocket goes backward. (a) True (b) False
36. 36.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) two chairs (d) a long string
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
40. 40.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water

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