Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 382 · 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 what we measure? (a) distance it travels (b) the same string (c) the slope of the string (d) the same tape
2. 2.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it guides the balloon (d) it blows air in
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
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 straw
7. 7.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) gas from the rocket (d) air from the balloon
8. 8.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
10. 10.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
11. 11.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) two chairs (d) turmeric powder
13. 13.True or false: a long string is needed for the balloon rocket. (a) False (b) True
14. 14.⚖️ 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
15. 15.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
16. 16.True or false: gas from the rocket goes backward. (a) True (b) False
17. 17.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rocket (d) the swimmer
18. 18.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the rowing boat (d) the swimmer
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
20. 20.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) sticky tape (d) vinegar
22. 22.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a drinking straw (d) a magnet
25. 25.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
26. 26.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a long string (d) a battery cell
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a magnet (d) two chairs
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a long string (d) a magnet
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
36. 36.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) a mirror
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
39. 39.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) water from the oars (d) gas from the rocket
40. 40.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) sticky tape (d) a magnet

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