Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 423 · 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 the balloon go? (a) goes backward (b) goes forward
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) turmeric powder (d) a battery cell
7. 7.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rocket (d) air from the balloon
8. 8.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
9. 9.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
11. 11.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
12. 12.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
13. 13.🚀 Which of these goes backward? (a) gas from the rocket (b) the balloon (c) the swimmer (d) the rowing boat
14. 14.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
15. 15.⚖️ 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
16. 16.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
17. 17.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the balloon (d) the rocket
18. 18.True or false: air from the balloon goes backward. (a) True (b) False
19. 19.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
20. 20.True or false: gas from the rocket goes backward. (a) False (b) True
21. 21.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
22. 22.🎈 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
23. 23.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
24. 24.True or false: air from the balloon goes forward. (a) True (b) False
25. 25.True or false: the rocket goes backward. (a) True (b) False
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a mirror (d) a balloon
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the slope of the string (c) the same tape (d) distance it travels
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) sticky tape (c) two chairs (d) a drinking straw
30. 30.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
31. 31.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a long string (d) a magnet
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a long string (d) turmeric powder
35. 35.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
36. 36.True or false: a long string is needed for the balloon rocket. (a) True (b) False
37. 37.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
38. 38.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
39. 39.True or false: water from the oars goes backward. (a) False (b) True
40. 40.⚖️ 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 tape

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