Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 756 · 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.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a sundial (d) a fridge magnet
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
4. 4.⚖️ 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
5. 5.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
6. 6.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the swimmer (d) air from the balloon
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a balloon (d) two chairs
8. 8.True or false: yeast is needed for the balloon rocket. (a) True (b) False
9. 9.🧺 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) two chairs
10. 10.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) air from the balloon
11. 11.True or false: the swimmer goes forward. (a) False (b) True
12. 12.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
15. 15.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
16. 16.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a long string (d) a magnet
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) distance it travels (c) the same string (d) the same straw
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) yeast (c) two chairs (d) a balloon
22. 22.True or false: the rowing boat goes backward. (a) False (b) True
23. 23.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
24. 24.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
25. 25.True or false: water a swimmer pushes goes forward. (a) True (b) False
26. 26.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rowing boat (d) gas from the rocket
27. 27.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) vinegar (d) a drinking straw
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a long string (d) sticky tape
31. 31.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rocket (d) air from the balloon
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) sticky tape (d) a magnet
33. 33.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
34. 34.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
36. 36.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
37. 37.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
38. 38.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
39. 39.🔮 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 much farther (d) it goes less far
40. 40.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed

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