Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 942 · 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.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) vinegar (c) a mirror (d) a magnet
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) vinegar (d) a drinking straw
3. 3.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) two chairs (d) a battery cell
4. 4.True or false: air from the balloon goes forward. (a) False (b) True
5. 5.🚀 Which of these goes backward? (a) the balloon (b) gas from the rocket (c) the rocket (d) the rowing boat
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) a long string (d) a balloon
7. 7.True or false: the balloon goes forward. (a) False (b) True
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
9. 9.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
10. 10.🎈 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
11. 11.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
12. 12.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
13. 13.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the swimmer (d) the rowing boat
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
15. 15.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) vinegar (d) a balloon
17. 17.⚖️ 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) how big we blow it (c) the same straw (d) the same tape
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a battery cell (d) a balloon
20. 20.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
21. 21.True or false: water from the oars goes backward. (a) False (b) True
22. 22.True or false: air from the balloon goes backward. (a) False (b) True
23. 23.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
24. 24.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a long string (d) a magnet
26. 26.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
27. 27.True or false: the balloon goes backward. (a) False (b) True
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
32. 32.🔮 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
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) water a swimmer pushes (d) gas from the rocket
36. 36.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the rowing boat
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) a magnet
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) yeast (d) a long string
39. 39.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False

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