Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 111 · 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.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) it goes faster (d) less friction
2. 2.⚖️ 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
3. 3.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) yeast (d) a drinking straw
5. 5.🔮 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
6. 6.🚀 Which of these goes forward? (a) the rocket (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a magnet (c) a balloon (d) sticky tape
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) vinegar
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) sticky tape (d) a drinking straw
10. 10.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the slope of the string (c) how big we blow it (d) the same tape
12. 12.⚖️ 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
13. 13.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) when it gets cold (d) it never stops
14. 14.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
15. 15.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) a magnet (d) turmeric powder
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
17. 17.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a balloon (d) yeast
19. 19.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
20. 20.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.True or false: water from the oars goes forward. (a) True (b) False
23. 23.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the rowing boat (d) the balloon
24. 24.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
25. 25.True or false: air from the balloon goes backward. (a) False (b) True
26. 26.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
27. 27.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a drinking straw (d) a balloon
31. 31.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
32. 32.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
33. 33.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) a long string (d) turmeric powder
35. 35.True or false: the rocket goes backward. (a) False (b) True
36. 36.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) distance it travels (c) the same tape (d) how big we blow it
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a mirror (c) a long string (d) two chairs
39. 39.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) turmeric powder (d) a drinking straw
40. 40.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward

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