Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 969 · 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) it goes faster (b) no change at all (c) more friction, less far (d) less friction
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.True or false: air from the balloon goes forward. (a) False (b) True
4. 4.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) yeast (d) vinegar
5. 5.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
6. 6.⚖️ 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 string (c) how big we blow it (d) distance it travels
7. 7.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the rowing boat (d) the balloon
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
9. 9.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
10. 10.⚖️ 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) the same string (c) how big we blow it (d) distance it travels
11. 11.True or false: water from the oars goes forward. (a) True (b) False
12. 12.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the swimmer
13. 13.True or false: yeast is needed for the balloon rocket. (a) False (b) True
14. 14.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a balloon (d) yeast
15. 15.⚖️ 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
16. 16.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
17. 17.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
18. 18.True or false: the balloon goes forward. (a) True (b) False
19. 19.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
20. 20.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
21. 21.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
22. 22.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
23. 23.🚀 Which of these goes backward? (a) water from the oars (b) the rowing boat (c) the swimmer (d) the balloon
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a balloon (d) a drinking straw
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) a long string (d) a balloon
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
28. 28.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
29. 29.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) yeast (d) a magnet
31. 31.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ 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 straw
33. 33.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
34. 34.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
37. 37.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
38. 38.True or false: the rowing boat goes backward. (a) False (b) True
39. 39.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) air from the balloon
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a drinking straw (d) a long string

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