Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 109 · 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.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
2. 2.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) sticky tape (d) yeast
5. 5.True or false: water from the oars goes backward. (a) True (b) False
6. 6.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
7. 7.True or false: the balloon goes backward. (a) True (b) False
8. 8.⚖️ 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
9. 9.True or false: gas from the rocket goes forward. (a) True (b) False
10. 10.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
11. 11.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
13. 13.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
14. 14.⚖️ 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) distance it travels (c) the same straw (d) the slope of the string
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) vinegar (c) a balloon (d) a drinking straw
16. 16.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
17. 17.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
18. 18.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the balloon (d) water from the oars
19. 19.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rowing boat (c) gas from the rocket (d) water from the oars
20. 20.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water a swimmer pushes (d) the rowing boat
21. 21.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
25. 25.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) air from the balloon (d) the swimmer
26. 26.⚖️ 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
27. 27.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
28. 28.⚖️ 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 measure it (c) we change it
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a long string (c) two chairs (d) sticky tape
30. 30.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
31. 31.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) turmeric powder (d) a long string
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a long string (d) turmeric powder
35. 35.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
36. 36.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a mirror (c) a long string (d) two chairs
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) two chairs (d) a balloon

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