Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 688 · 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.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
2. 2.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the rocket
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a long string (d) a drinking straw
4. 4.⚖️ 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) how big we blow it (c) distance it travels
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) sticky tape (d) turmeric powder
6. 6.🔮 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
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) two chairs (c) a balloon (d) sticky tape
9. 9.⚖️ 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) how big we blow it (d) distance it travels
10. 10.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
11. 11.⚖️ 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
12. 12.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
13. 13.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
14. 14.True or false: the rowing boat goes backward. (a) False (b) True
15. 15.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
16. 16.⚖️ 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
17. 17.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
18. 18.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
19. 19.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
21. 21.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
22. 22.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
23. 23.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
24. 24.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
25. 25.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) air from the balloon
26. 26.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
27. 27.⚖️ 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
28. 28.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a magnet (d) a balloon
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
32. 32.True or false: yeast is needed for the balloon rocket. (a) True (b) False
33. 33.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
34. 34.True or false: water from the oars goes forward. (a) False (b) True
35. 35.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water from the oars (d) the rowing boat
36. 36.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
38. 38.⚖️ 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
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) vinegar
40. 40.True or false: the swimmer goes forward. (a) False (b) True

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