Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 210 · 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.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
2. 2.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) vinegar (c) yeast (d) a mirror
4. 4.True or false: water a swimmer pushes goes backward. (a) True (b) False
5. 5.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
7. 7.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
8. 8.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
9. 9.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
10. 10.True or false: the balloon goes backward. (a) False (b) True
11. 11.⚖️ 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 slope of the string (c) distance it travels
12. 12.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) sticky tape (d) yeast
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) a long string (d) sticky tape
18. 18.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
19. 19.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the swimmer (d) the rocket
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) vinegar (d) two chairs
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) how big we blow it (d) the same tape
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
23. 23.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
24. 24.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the rocket (d) the rowing boat
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a mirror (d) a drinking straw
26. 26.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
28. 28.True or false: gas from the rocket goes backward. (a) True (b) False
29. 29.True or false: gas from the rocket goes forward. (a) False (b) True
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
31. 31.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
33. 33.True or false: the rocket goes forward. (a) False (b) True
34. 34.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
35. 35.🔮 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
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a mirror (d) a battery cell
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a balloon (d) a long string
39. 39.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a drinking straw (d) a mirror

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