Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 144 · 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 straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
3. 3.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the rocket (d) the balloon
4. 4.⚖️ 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
5. 5.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
6. 6.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
7. 7.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
8. 8.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
9. 9.⚖️ 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
10. 10.True or false: air from the balloon goes backward. (a) True (b) False
11. 11.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
13. 13.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) it goes faster (d) more friction, less far
15. 15.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) water a swimmer pushes (d) air from the balloon
16. 16.🧺 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) vinegar
17. 17.True or false: the rowing boat goes backward. (a) True (b) False
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same string (c) the same tape (d) the slope of the string
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) sticky tape (c) turmeric powder (d) a magnet
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a balloon (d) yeast
22. 22.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) air from the balloon (d) the balloon
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a battery cell (d) a long string
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
25. 25.🛟 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
26. 26.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.True or false: water a swimmer pushes goes forward. (a) False (b) True
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a drinking straw (d) a balloon
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) a magnet
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a drinking straw (d) a mirror
33. 33.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
34. 34.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
36. 36.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a long string (d) a magnet
38. 38.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
39. 39.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rocket (d) water a swimmer pushes
40. 40.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed

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