Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 452 · 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? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) turmeric powder (d) a long string
4. 4.⚖️ 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
5. 5.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
7. 7.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
10. 10.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two chairs (d) a mirror
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) two chairs (d) a magnet
15. 15.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
16. 16.True or false: gas from the rocket goes backward. (a) False (b) True
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) vinegar (d) turmeric powder
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) yeast (d) two chairs
19. 19.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
22. 22.⚖️ 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 change it (c) we keep it the same
23. 23.⚖️ 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) how big we blow it (c) the same string (d) the same straw
24. 24.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a drinking straw (d) vinegar
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
28. 28.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
29. 29.🚀 Which of these goes backward? (a) the swimmer (b) gas from the rocket (c) the rocket (d) the balloon
30. 30.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
31. 31.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rowing boat (d) the swimmer
32. 32.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
33. 33.True or false: water a swimmer pushes goes forward. (a) True (b) False
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) a battery cell
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a balloon (d) yeast
36. 36.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
37. 37.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
39. 39.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True

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