Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 520 · 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.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
3. 3.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
4. 4.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
5. 5.True or false: gas from the rocket goes backward. (a) False (b) True
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) vinegar (d) a drinking straw
7. 7.⚖️ 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 straw (c) the same tape (d) the same string
8. 8.True or false: air from the balloon goes forward. (a) False (b) True
9. 9.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
11. 11.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) a long string (d) two chairs
13. 13.🧺 Do we need two chairs 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 what we measure? (a) the slope of the string (b) the same straw (c) how big we blow it (d) distance it travels
15. 15.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) gas from the rocket (d) air from the balloon
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a long string (d) sticky tape
17. 17.⚖️ 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 string (c) how big we blow it
18. 18.True or false: the swimmer goes backward. (a) True (b) False
19. 19.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
24. 24.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water a swimmer pushes (d) water from the oars
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) a long string (d) a balloon
26. 26.True or false: the balloon goes backward. (a) True (b) False
27. 27.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rocket (d) air from the balloon
28. 28.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
32. 32.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a drinking straw (d) sticky tape
34. 34.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
35. 35.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
36. 36.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the swimmer (c) air from the balloon (d) gas from the rocket
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) two chairs (d) a balloon
38. 38.True or false: the rocket goes backward. (a) True (b) False
39. 39.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) turmeric powder (d) a drinking straw

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