Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 350 · 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 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
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a battery cell (d) sticky tape
3. 3.⚖️ 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
4. 4.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
5. 5.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.⚖️ 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
8. 8.True or false: the swimmer goes backward. (a) False (b) True
9. 9.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
10. 10.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
11. 11.⚖️ 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) the same tape (d) how big we blow it
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a drinking straw (d) yeast
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) sticky tape (d) a balloon
14. 14.True or false: air from the balloon goes backward. (a) True (b) False
15. 15.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) no change at all (d) less friction
17. 17.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the balloon (d) water a swimmer pushes
18. 18.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
19. 19.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) the slope of the string (d) the same straw
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a magnet (d) a balloon
26. 26.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes less far (d) it goes much farther
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) two chairs (c) a long string (d) sticky tape
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.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
31. 31.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
33. 33.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
34. 34.🚀 Which of these goes backward? (a) the swimmer (b) water a swimmer pushes (c) the rowing boat (d) the balloon
35. 35.🚀 Which of these goes backward? (a) air from the balloon (b) the rocket (c) the balloon (d) the swimmer
36. 36.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a long string (d) a mirror
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) yeast (d) sticky tape
38. 38.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
39. 39.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) air from the balloon (d) water a swimmer pushes
40. 40.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed

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