Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 251 · 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 rowing boat go? (a) goes forward (b) goes backward
2. 2.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) a magnet (d) a balloon
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
4. 4.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) a mirror (d) sticky tape
6. 6.True or false: the balloon goes backward. (a) False (b) True
7. 7.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the swimmer (d) the rowing boat
8. 8.True or false: the balloon goes forward. (a) True (b) False
9. 9.⚖️ 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) the same tape (c) the same string (d) distance it travels
10. 10.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
11. 11.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
12. 12.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) two chairs (d) a balloon
14. 14.True or false: water a swimmer pushes goes backward. (a) True (b) False
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
16. 16.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a mirror (d) sticky tape
19. 19.⚖️ 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
20. 20.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rocket (d) water from the oars
21. 21.🎈 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
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
23. 23.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
24. 24.True or false: water from the oars goes forward. (a) False (b) True
25. 25.⚖️ 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
26. 26.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
27. 27.⚖️ 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) the same tape (c) the same straw (d) how big we blow it
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) gas from the rocket (d) the swimmer
30. 30.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a magnet (d) two chairs
32. 32.🧺 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
33. 33.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
34. 34.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
38. 38.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
39. 39.True or false: air from the balloon goes forward. (a) True (b) False
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids