Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 591 · 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.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
2. 2.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
4. 4.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
6. 6.⚖️ 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 change it (c) we keep it the same
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) two chairs (c) a balloon (d) a long string
10. 10.True or false: the swimmer goes forward. (a) True (b) False
11. 11.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
13. 13.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
14. 14.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) it never stops (d) when it turns blue
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a balloon (d) a mirror
16. 16.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ 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
18. 18.⚖️ 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
19. 19.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) a drinking straw (d) a balloon
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
22. 22.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
23. 23.True or false: the balloon goes backward. (a) False (b) True
24. 24.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) a magnet
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.True or false: water from the oars goes backward. (a) False (b) True
28. 28.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) distance it travels (c) the same straw (d) the same tape
30. 30.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rocket (d) water from the oars
31. 31.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
32. 32.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a mirror (d) a sundial
34. 34.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
36. 36.⚖️ 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) False (b) True
37. 37.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) straight down (d) it stays still
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a balloon (d) a mirror
39. 39.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
40. 40.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther

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