Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 903 · 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.⚖️ 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
2. 2.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a battery cell (d) a long string
4. 4.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
5. 5.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same straw (c) how big we blow it (d) the slope of the string
7. 7.True or false: gas from the rocket goes backward. (a) False (b) True
8. 8.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
9. 9.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
10. 10.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a long string (d) a magnet
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a drinking straw (d) yeast
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
14. 14.True or false: the balloon goes backward. (a) False (b) True
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a magnet (c) a balloon (d) a drinking straw
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) sticky tape (d) a mirror
18. 18.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
20. 20.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (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) turmeric powder (c) a long string (d) two chairs
24. 24.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) when it turns blue (d) it never stops
25. 25.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the slope of the string (c) the same tape (d) distance it travels
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a long string (d) a drinking straw
29. 29.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
30. 30.True or false: air from the balloon goes backward. (a) False (b) True
31. 31.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
32. 32.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a battery cell (d) a balloon
34. 34.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ 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
36. 36.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the rocket (d) the balloon
37. 37.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
39. 39.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
40. 40.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) air from the balloon (d) water a swimmer pushes

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