Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 819 · 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.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) keep it away from faces (d) blow it till it bursts
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) a magnet
4. 4.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it makes it heavier (d) it holds water
5. 5.⚖️ 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
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) sticky tape (d) a magnet
7. 7.True or false: the rocket goes backward. (a) True (b) False
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a drinking straw (d) turmeric powder
9. 9.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
10. 10.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) throw them away safely (d) keep them in your mouth
11. 11.True or false: yeast is needed for the balloon rocket. (a) True (b) False
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) yeast
13. 13.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
14. 14.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
15. 15.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
17. 17.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
18. 18.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) two chairs (d) a battery cell
19. 19.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
21. 21.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the rowing boat
23. 23.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) air from the balloon (d) the balloon
24. 24.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
25. 25.True or false: the rocket goes forward. (a) True (b) False
26. 26.True or false: air from the balloon goes backward. (a) True (b) False
27. 27.True or false: the rowing boat goes backward. (a) True (b) False
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same straw (c) distance it travels (d) the same tape
30. 30.True or false: gas from the rocket goes backward. (a) False (b) True
31. 31.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
33. 33.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
34. 34.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
35. 35.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
36. 36.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) air from the balloon (d) gas from the rocket
37. 37.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rocket (d) water a swimmer pushes
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True

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