Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 444 · 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? True or false: the same string is kept the same. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
4. 4.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
5. 5.🚀 Which of these goes backward? (a) the rowing boat (b) gas from the rocket (c) the swimmer (d) the rocket
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.⚖️ 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 straw
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a battery cell (d) a balloon
10. 10.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
11. 11.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
12. 12.🛟 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
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) a long string (d) sticky tape
15. 15.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
17. 17.⚖️ 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
18. 18.🛟 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
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
20. 20.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
21. 21.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a drinking straw (c) turmeric powder (d) a battery cell
22. 22.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a balloon (d) a drinking straw
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) vinegar (d) a mirror
25. 25.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water from the oars (d) water a swimmer pushes
28. 28.⚖️ 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
29. 29.🎈 What is the job of the straw on the string? (a) it blows air in (b) it holds water (c) it makes it heavier (d) it guides the balloon
30. 30.🔮 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
31. 31.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
32. 32.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
33. 33.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the rowing boat
34. 34.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
35. 35.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) turmeric powder (d) two chairs
37. 37.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
40. 40.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) gas from the rocket (d) water from the oars

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