Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 268 · 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 air from the balloon go? (a) goes forward (b) goes backward
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same straw (d) the same string
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) distance it travels (c) the slope of the string (d) the same tape
4. 4.🚀 Which of these goes backward? (a) the rowing boat (b) gas from the rocket (c) the balloon (d) the rocket
5. 5.⚖️ 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 change it (c) we measure it
6. 6.True or false: the rowing boat goes backward. (a) False (b) True
7. 7.⚖️ 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
8. 8.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
9. 9.🎈 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
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) two chairs (d) a balloon
12. 12.⚖️ 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
13. 13.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
14. 14.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
15. 15.True or false: air from the balloon goes backward. (a) True (b) False
16. 16.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the rowing boat
17. 17.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
18. 18.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a drinking straw (d) yeast
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
20. 20.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
21. 21.⚖️ 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 change it (c) we measure it
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the rocket (d) air from the balloon
23. 23.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
25. 25.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
27. 27.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
29. 29.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
30. 30.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
31. 31.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
32. 32.True or false: water from the oars goes forward. (a) False (b) True
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
35. 35.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
36. 36.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
38. 38.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a mirror (d) a balloon
40. 40.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True

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