Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 715 · 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.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) gas from the rocket (d) water a swimmer pushes
2. 2.🔮 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
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) two chairs (d) yeast
4. 4.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
5. 5.🔮 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
6. 6.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
7. 7.True or false: the swimmer goes forward. (a) False (b) True
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) yeast
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) sticky tape (d) a battery cell
11. 11.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water from the oars (d) gas from the rocket
12. 12.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
13. 13.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
14. 14.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) water a swimmer pushes (d) air from the balloon
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same straw (d) the same tape
16. 16.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
18. 18.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
19. 19.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the balloon
20. 20.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a mirror (d) a balloon
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) two chairs (d) turmeric powder
22. 22.True or false: yeast is needed for the balloon rocket. (a) True (b) False
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
24. 24.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
26. 26.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ 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 keep it the same (c) we measure it
28. 28.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
31. 31.⚖️ 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
32. 32.True or false: water a swimmer pushes goes forward. (a) False (b) True
33. 33.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
34. 34.🔮 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
35. 35.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
36. 36.True or false: water a swimmer pushes goes backward. (a) True (b) False
37. 37.True or false: the balloon goes backward. (a) True (b) False
38. 38.True or false: water from the oars goes forward. (a) False (b) True
39. 39.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) water a swimmer pushes
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same

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