Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 212 · 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.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it makes it heavier (d) it blows air in
2. 2.True or false: water a swimmer pushes goes backward. (a) False (b) True
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
4. 4.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) two chairs (d) turmeric powder
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) sticky tape (d) turmeric powder
7. 7.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rocket (c) air from the balloon (d) water from the oars
8. 8.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
9. 9.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
10. 10.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
12. 12.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) water a swimmer pushes (d) the swimmer
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a balloon (d) a drinking straw
14. 14.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
15. 15.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the balloon (d) water from the oars
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.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
18. 18.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a mirror (d) sticky tape
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a battery cell (d) a long string
23. 23.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
24. 24.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) the slope of the string (d) how big we blow it
26. 26.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) escaping air pushes it (d) a magnet pulls it
27. 27.⚖️ 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
28. 28.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
29. 29.⚖️ 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
30. 30.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rowing boat (d) the balloon
31. 31.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a long string (d) a battery cell
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) turmeric powder (d) a long string
34. 34.True or false: the balloon goes forward. (a) True (b) False
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
36. 36.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a mirror (d) turmeric powder
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
38. 38.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
39. 39.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the swimmer (d) the rowing boat
40. 40.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed

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