Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 213 · 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 can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
2. 2.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
3. 3.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it holds water (d) it makes it heavier
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a drinking straw (d) a mirror
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) yeast (d) a drinking straw
9. 9.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
10. 10.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) two chairs (d) sticky tape
12. 12.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
13. 13.⚖️ 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
14. 14.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
16. 16.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.⚖️ 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) the same string (c) distance it travels (d) how big we blow it
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a drinking straw (d) sticky tape
20. 20.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) a battery cell (d) a long string
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) turmeric powder (d) two chairs
23. 23.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) water a swimmer pushes (d) the rowing boat
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
26. 26.⚖️ 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) how big we blow it (c) the same string (d) the slope of the string
27. 27.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
28. 28.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) air from the balloon (d) the swimmer
30. 30.True or false: air from the balloon goes backward. (a) True (b) False
31. 31.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
32. 32.True or false: water a swimmer pushes goes forward. (a) True (b) False
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) yeast
35. 35.True or false: water from the oars goes forward. (a) True (b) False
36. 36.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the rocket (d) the rowing boat
37. 37.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
38. 38.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all

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