Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 376 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
2. 2.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
3. 3.⚖️ 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 keep it the same (c) we change it
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a battery cell (c) a balloon (d) sticky tape
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) turmeric powder (c) two chairs (d) a balloon
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same tape
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
8. 8.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
9. 9.⚖️ 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 tape (c) the same straw (d) how big we blow it
10. 10.🚀 Which of these goes backward? (a) the balloon (b) air from the balloon (c) the rocket (d) the rowing boat
11. 11.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
12. 12.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
13. 13.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
14. 14.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
15. 15.True or false: the rowing boat goes forward. (a) True (b) False
16. 16.True or false: a mirror is 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 same string (c) how big we blow it
18. 18.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
20. 20.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) vinegar (c) a battery cell (d) a magnet
22. 22.True or false: gas from the rocket goes backward. (a) True (b) False
23. 23.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
24. 24.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) vinegar (d) a long string
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
27. 27.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
28. 28.True or false: the balloon goes forward. (a) False (b) True
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 measure it (b) we keep it the same (c) we change it
30. 30.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when the air runs out (d) when it turns blue
31. 31.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
32. 32.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
33. 33.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) turmeric powder (d) a magnet
34. 34.⚖️ 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
35. 35.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
36. 36.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
37. 37.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a magnet (d) a balloon
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a drinking straw (d) a balloon
40. 40.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) water from the oars (d) gas from the rocket

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