Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 127 · 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.True or false: the rocket goes backward. (a) False (b) True
2. 2.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rowing boat (d) water a swimmer pushes
3. 3.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.True or false: the rowing boat goes forward. (a) True (b) False
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a battery cell (d) two chairs
7. 7.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
8. 8.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
9. 9.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
10. 10.⚖️ 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 change it (c) we measure it
11. 11.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
13. 13.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
14. 14.⚖️ 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) the same tape (c) distance it travels
15. 15.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
16. 16.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when it gets cold (d) when the air runs out
17. 17.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
18. 18.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
19. 19.⚖️ 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 string
20. 20.True or false: the swimmer goes forward. (a) False (b) True
21. 21.⚖️ 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
22. 22.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
23. 23.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a battery cell (d) a drinking straw
24. 24.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) a mirror
27. 27.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the swimmer
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) two chairs (d) a battery cell
29. 29.🔮 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
30. 30.⚖️ 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
31. 31.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
32. 32.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
33. 33.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a magnet (d) two chairs
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same tape (c) the same string (d) how big we blow it
37. 37.True or false: air from the balloon goes backward. (a) False (b) True
38. 38.⚖️ 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
39. 39.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
40. 40.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a magnet (d) a battery cell

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