Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 538 · 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 use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
2. 2.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a magnet (d) a balloon
3. 3.True or false: a long string is needed for the balloon rocket. (a) True (b) False
4. 4.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
5. 5.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
6. 6.⚖️ 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
7. 7.⚖️ 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
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) vinegar (c) a drinking straw (d) a balloon
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
12. 12.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) air from the balloon
13. 13.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) two chairs (c) turmeric powder (d) a mirror
14. 14.True or false: air from the balloon goes backward. (a) False (b) True
15. 15.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the rocket (d) air from the balloon
16. 16.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) gas from the rocket (d) the balloon
17. 17.True or false: yeast is needed for the balloon rocket. (a) False (b) True
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) turmeric powder
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
20. 20.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
21. 21.True or false: water from the oars goes backward. (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) the same straw (b) the same tape (c) the slope of the string (d) distance it travels
23. 23.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
24. 24.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a battery cell (d) sticky tape
26. 26.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) sticky tape (d) a drinking straw
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the same tape (d) the same string
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
30. 30.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
31. 31.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
33. 33.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) a long string (d) two chairs
35. 35.True or false: water from the oars goes forward. (a) True (b) False
36. 36.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water a swimmer pushes (d) the rowing boat
37. 37.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
38. 38.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) escaping air pushes it (d) the straw is heavy
39. 39.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) sticky tape (d) a mirror
40. 40.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward

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