Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 723 · 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 backward? (a) gas from the rocket (b) the rowing boat (c) the balloon (d) the rocket
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) turmeric powder
3. 3.⚖️ 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) the slope of the string
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
7. 7.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water a swimmer pushes (d) the rowing boat
8. 8.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) a balloon (d) a magnet
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
10. 10.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
11. 11.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
12. 12.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
13. 13.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
14. 14.🛟 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
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
16. 16.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
17. 17.🔮 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
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same tape (c) the same straw (d) how big we blow it
19. 19.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) two chairs (d) a long string
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) yeast (d) a balloon
22. 22.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
23. 23.True or false: the swimmer goes forward. (a) False (b) True
24. 24.⚖️ 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 straw (c) how big we blow it
25. 25.⚖️ 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
26. 26.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) no change at all (d) less friction
27. 27.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
28. 28.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
29. 29.⚖️ 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
30. 30.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a mirror (d) two chairs
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a mirror (d) a drinking straw
32. 32.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rocket (d) the rowing boat
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) two chairs (d) a battery cell
34. 34.True or false: air from the balloon goes forward. (a) False (b) True
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) vinegar (d) a long string
36. 36.True or false: yeast is needed for the balloon rocket. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
38. 38.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
39. 39.⚖️ 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
40. 40.⚖️ 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 keep it the same (c) we measure it

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