Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 272 · 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 a long string for the balloon rocket? (a) needed (b) not needed
2. 2.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
5. 5.⚖️ 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
6. 6.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
7. 7.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a magnet (c) vinegar (d) turmeric powder
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.True or false: the rowing boat goes forward. (a) False (b) True
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a drinking straw (c) a long string (d) sticky tape
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
12. 12.True or false: air from the balloon goes forward. (a) False (b) True
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a mirror (d) a drinking straw
14. 14.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rocket (c) air from the balloon (d) gas from the rocket
15. 15.True or false: the rowing boat goes backward. (a) False (b) True
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) two chairs (d) sticky tape
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
18. 18.True or false: yeast is needed for the balloon rocket. (a) True (b) False
19. 19.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
20. 20.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
21. 21.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the swimmer
22. 22.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a long string (d) vinegar
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
25. 25.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
26. 26.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a long string (d) yeast
27. 27.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it gets cold (d) when it turns blue
28. 28.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
30. 30.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) water from the oars (d) the swimmer
31. 31.⚖️ 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 string (c) distance it travels
32. 32.⚖️ 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
33. 33.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
34. 34.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
35. 35.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
36. 36.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rowing boat (d) air from the balloon
37. 37.⚖️ 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 string (d) distance it travels
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) sticky tape (d) turmeric powder
39. 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a mirror (d) a fridge magnet
40. 40.True or false: gas from the rocket goes forward. (a) False (b) True

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