Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 701 · 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) water a swimmer pushes (b) the balloon (c) water from the oars (d) air from the balloon
2. 2.True or false: yeast is needed for the balloon rocket. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
5. 5.True or false: water a swimmer pushes goes forward. (a) True (b) False
6. 6.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
7. 7.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
8. 8.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
9. 9.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
11. 11.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in
12. 12.True or false: air from the balloon goes backward. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the same string (c) how big we blow it (d) the slope of the string
14. 14.⚖️ 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 keep it the same (c) we change it
15. 15.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
16. 16.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
18. 18.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a long string (d) a battery cell
21. 21.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) yeast
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
25. 25.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
26. 26.🎈 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
27. 27.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
28. 28.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) distance it travels (d) how big we blow it
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) a battery cell
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a magnet (d) a long string
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) turmeric powder (d) a long string
34. 34.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a long string (d) a mirror
36. 36.True or false: the balloon goes forward. (a) False (b) True
37. 37.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
38. 38.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
39. 39.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
40. 40.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther

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