Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 644 · 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.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) the straw is heavy (d) a magnet pulls it
2. 2.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
3. 3.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
5. 5.⚖️ 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 straw (c) how big we blow it (d) the same tape
6. 6.🛟 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
7. 7.True or false: water a swimmer pushes goes backward. (a) True (b) False
8. 8.⚖️ 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 straw
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
10. 10.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
11. 11.True or false: gas from the rocket goes backward. (a) True (b) False
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) two chairs (d) sticky tape
13. 13.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rowing boat (c) air from the balloon (d) water from the oars
14. 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) how big we blow it (d) the same string
16. 16.True or false: a long string is needed for the balloon rocket. (a) False (b) True
17. 17.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) two chairs (d) a battery cell
19. 19.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) air from the balloon
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) yeast (d) two chairs
24. 24.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) air from the balloon (d) the swimmer
25. 25.⚖️ 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
26. 26.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
27. 27.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
28. 28.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a drinking straw (d) two chairs
30. 30.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a balloon (d) a long string
32. 32.⚖️ 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 measure it (c) we change it
33. 33.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) sticky tape (c) a magnet (d) turmeric powder
35. 35.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a magnet (d) a balloon
37. 37.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
38. 38.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ 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 keep it the same (c) we measure it
40. 40.True or false: gas from the rocket goes forward. (a) True (b) False

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