Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 400 · 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 “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the rocket (d) the balloon
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) yeast (d) a long string
4. 4.🎈 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
5. 5.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
6. 6.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the balloon
7. 7.🧺 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
8. 8.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
9. 9.⚖️ 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) False (b) True
10. 10.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a battery cell (d) vinegar
11. 11.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
12. 12.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
13. 13.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) yeast (d) a long string
14. 14.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
15. 15.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
16. 16.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
19. 19.True or false: air from the balloon goes backward. (a) False (b) True
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
21. 21.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (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? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) gas from the rocket (d) water a swimmer pushes
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a balloon (d) two chairs
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same tape (c) the same string (d) distance it travels
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) two chairs (c) turmeric powder (d) a mirror
28. 28.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) a long string
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) a mirror
31. 31.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
32. 32.⚖️ 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
33. 33.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
36. 36.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
38. 38.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
39. 39.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the rowing boat (d) gas from the rocket
40. 40.True or false: the rowing boat goes backward. (a) False (b) True

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