Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 740 · 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? Which of these is what we measure? (a) the slope of the string (b) the same straw (c) distance it travels (d) the same tape
2. 2.⚖️ 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
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) a mirror
5. 5.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it blows air in (d) it makes it heavier
6. 6.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
7. 7.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
8. 8.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
9. 9.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
10. 10.⚖️ 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
11. 11.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it gets cold (d) when it turns blue
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
13. 13.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) turmeric powder (d) a balloon
14. 14.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
15. 15.True or false: the balloon goes forward. (a) False (b) True
16. 16.True or false: water from the oars goes forward. (a) True (b) False
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
18. 18.⚖️ 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) the same string (c) how big we blow it (d) distance it travels
19. 19.⚖️ 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
20. 20.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
21. 21.True or false: water from the oars goes backward. (a) True (b) False
22. 22.True or false: a long string is needed for the balloon rocket. (a) True (b) False
23. 23.⚖️ 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
24. 24.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the rocket (d) water a swimmer pushes
25. 25.True or false: the rocket goes forward. (a) True (b) False
26. 26.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
27. 27.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
28. 28.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the swimmer (d) gas from the rocket
29. 29.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the swimmer (d) air from the balloon
30. 30.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
33. 33.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
34. 34.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) vinegar (d) a balloon
36. 36.🔮 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
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) yeast (d) a drinking straw
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
39. 39.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same

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