Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 489 · 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.True or false: water from the oars goes forward. (a) True (b) False
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a mirror (c) yeast (d) a magnet
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) the same tape (d) the same straw
4. 4.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
5. 5.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a long string (c) two chairs (d) a balloon
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rocket (d) water a swimmer pushes
9. 9.True or false: water from the oars goes backward. (a) True (b) False
10. 10.True or false: the rocket goes forward. (a) True (b) False
11. 11.True or false: the rowing boat goes backward. (a) True (b) False
12. 12.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
13. 13.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the swimmer
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a battery cell (d) two chairs
15. 15.🎈 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
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same string (c) the slope of the string (d) how big we blow it
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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) turmeric powder (d) two chairs
19. 19.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) a long string (d) sticky tape
22. 22.True or false: the swimmer goes forward. (a) False (b) True
23. 23.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a magnet (c) two chairs (d) a drinking straw
26. 26.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
27. 27.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
28. 28.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
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 measure it (c) we keep it the same
30. 30.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the balloon (d) water a swimmer pushes
31. 31.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
33. 33.⚖️ 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
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.🧺 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) two chairs
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a magnet (d) sticky tape
37. 37.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror

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