Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 412 · 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.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
3. 3.True or false: the balloon goes forward. (a) True (b) False
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
6. 6.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) two chairs (d) a magnet
8. 8.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
9. 9.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) escaping air pushes it (d) the string pulls it
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
11. 11.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a balloon (d) vinegar
13. 13.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two chairs (d) yeast
15. 15.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) yeast (d) a magnet
17. 17.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
20. 20.True or false: gas from the rocket goes backward. (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 kept the same. (a) False (b) True
22. 22.⚖️ 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) how big we blow it (d) the same straw
23. 23.⚖️ 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
24. 24.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
25. 25.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
26. 26.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
27. 27.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
28. 28.True or false: water from the oars goes backward. (a) True (b) False
29. 29.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a battery cell (d) a drinking straw
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
34. 34.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the rowing boat (d) the balloon
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
40. 40.True or false: water a swimmer pushes goes forward. (a) False (b) True

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