Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 925 · 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.⚖️ 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 keep it the same (c) we measure it
2. 2.True or false: the swimmer goes backward. (a) False (b) True
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
5. 5.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a mirror (d) a balloon
7. 7.True or false: the balloon goes forward. (a) False (b) True
8. 8.True or false: water a swimmer pushes goes forward. (a) False (b) True
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
10. 10.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
11. 11.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) vinegar (c) a mirror (d) a magnet
12. 12.True or false: gas from the rocket goes forward. (a) False (b) True
13. 13.⚖️ 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
14. 14.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a battery cell (d) two chairs
16. 16.True or false: air from the balloon goes backward. (a) False (b) True
17. 17.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
18. 18.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) two chairs (d) a long string
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a balloon (d) a magnet
22. 22.⚖️ 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 string
23. 23.True or false: water a swimmer pushes goes backward. (a) False (b) True
24. 24.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
25. 25.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
26. 26.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) water a swimmer pushes (d) the rocket
27. 27.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
28. 28.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) vinegar (c) two chairs (d) a balloon
30. 30.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) two chairs (d) sticky tape
34. 34.True or false: the rocket goes forward. (a) False (b) True
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a drinking straw (d) a magnet
36. 36.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
38. 38.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the balloon (d) water from the oars
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
40. 40.🛟 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

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