Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 742 · 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? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) yeast (d) two chairs
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a balloon (d) two chairs
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same straw
5. 5.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) a drinking straw (d) a balloon
7. 7.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the balloon (d) the rowing boat
8. 8.⚖️ 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 string (c) the same tape (d) the same straw
9. 9.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) gas from the rocket (d) the rowing boat
10. 10.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
11. 11.True or false: gas from the rocket goes forward. (a) False (b) True
12. 12.True or false: water a swimmer pushes goes backward. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
16. 16.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
18. 18.True or false: the swimmer goes forward. (a) True (b) False
19. 19.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: the balloon goes forward. (a) False (b) True
21. 21.True or false: the rowing boat goes backward. (a) False (b) True
22. 22.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a long string (c) a balloon (d) two chairs
24. 24.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
25. 25.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) keep them in your mouth (d) give them to a baby
26. 26.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) blow it till it bursts (d) put string round a neck
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) turmeric powder (d) a balloon
31. 31.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
33. 33.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
34. 34.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
35. 35.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
36. 36.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
37. 37.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
38. 38.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
39. 39.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True

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