Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 514 · 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) not needed (b) needed
2. 2.True or false: air from the balloon goes backward. (a) True (b) False
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a long string (d) two chairs
4. 4.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
5. 5.🎈 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
6. 6.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) when it gets cold (d) it never stops
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a mirror (d) sticky tape
9. 9.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
10. 10.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
11. 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same tape (c) distance it travels
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a drinking straw (d) two chairs
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a balloon (d) a long string
15. 15.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) gas from the rocket (d) the rocket
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) a magnet
17. 17.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
18. 18.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) distance it travels (d) the slope of the string
22. 22.True or false: water a swimmer pushes goes backward. (a) False (b) True
23. 23.True or false: the rocket goes backward. (a) True (b) False
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a battery cell (c) a magnet (d) a mirror
25. 25.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
26. 26.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a magnet (d) vinegar
27. 27.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
28. 28.True or false: the rowing boat goes backward. (a) True (b) False
29. 29.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
32. 32.⚖️ 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 tape (c) the same straw (d) distance it travels
33. 33.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
34. 34.🎈 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
35. 35.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
36. 36.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
38. 38.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a long string (d) yeast

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