Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 555 · 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 the one thing we change? (a) how big we blow it (b) the same straw (c) the slope of the string (d) the same string
2. 2.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the swimmer
5. 5.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) two chairs (d) vinegar
7. 7.⚖️ 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
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a mirror (d) two chairs
9. 9.🚀 Which of these goes backward? (a) gas from the rocket (b) the balloon (c) the rowing boat (d) the swimmer
10. 10.⚖️ 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 change it (c) we measure it
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a long string (d) a balloon
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
13. 13.⚖️ 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
14. 14.🚀 Which of these goes forward? (a) gas from the rocket (b) the balloon (c) air from the balloon (d) water a swimmer pushes
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
16. 16.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
17. 17.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
18. 18.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
19. 19.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
20. 20.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
21. 21.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
22. 22.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
23. 23.True or false: gas from the rocket goes backward. (a) True (b) False
24. 24.True or false: water from the oars goes forward. (a) True (b) False
25. 25.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
26. 26.🛟 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
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a balloon (d) two chairs
28. 28.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
29. 29.True or false: the rowing boat goes forward. (a) False (b) True
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) yeast (d) a long string
31. 31.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) vinegar (d) two chairs
33. 33.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) how big we blow it (d) distance it travels
35. 35.🔮 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
36. 36.True or false: air from the balloon goes backward. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
38. 38.True or false: the rowing boat goes backward. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False

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