Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 930 · 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.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
3. 3.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) yeast (d) a magnet
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) yeast
6. 6.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) a balloon (d) a long string
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a long string (d) sticky tape
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a battery cell (d) vinegar
11. 11.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
12. 12.True or false: the balloon goes backward. (a) True (b) False
13. 13.🛟 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
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
15. 15.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
16. 16.🧺 Do we need a mirror 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 the one thing we change. (a) False (b) True
18. 18.🔮 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
19. 19.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
20. 20.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a balloon (d) a magnet
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a battery cell (d) sticky tape
23. 23.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same tape (c) the same string (d) how big we blow it
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
26. 26.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
27. 27.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
28. 28.True or false: the rowing boat goes backward. (a) True (b) False
29. 29.⚖️ 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
30. 30.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
32. 32.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the balloon (d) the rowing boat
33. 33.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) turmeric powder (d) a magnet
35. 35.True or false: water from the oars goes backward. (a) True (b) False
36. 36.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) sticky tape (d) a magnet
38. 38.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) air from the balloon
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
40. 40.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed

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