Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 310 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
2. 2.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
3. 3.⚖️ 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
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a magnet (d) a long string
6. 6.True or false: water a swimmer pushes goes backward. (a) True (b) False
7. 7.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the rocket (d) the balloon
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) two chairs (c) a balloon (d) a drinking straw
9. 9.🔮 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
10. 10.⚖️ 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
11. 11.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
14. 14.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
15. 15.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) vinegar (d) a balloon
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a long string (d) sticky tape
19. 19.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) sticky tape (d) a long string
21. 21.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
22. 22.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
23. 23.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
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.True or false: water from the oars goes backward. (a) True (b) False
26. 26.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) two chairs (c) sticky tape (d) a drinking straw
28. 28.True or false: water a swimmer pushes goes forward. (a) True (b) False
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) how big we blow it (c) distance it travels
30. 30.⚖️ 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) how big we blow it (c) distance it travels (d) the same tape
31. 31.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
32. 32.🎈 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
33. 33.⚖️ 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
34. 34.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rowing boat (d) gas from the rocket
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
36. 36.⚖️ 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
37. 37.True or false: the balloon goes backward. (a) True (b) False
38. 38.⚖️ 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
39. 39.True or false: air from the balloon goes forward. (a) True (b) False
40. 40.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward

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