Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 598 · 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.True or false: air from the balloon goes forward. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) the slope of the string (c) how big we blow it (d) distance it travels
3. 3.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) gas from the rocket (d) the rowing boat
4. 4.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
5. 5.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) the slope of the string (d) distance it travels
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
8. 8.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
9. 9.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
10. 10.⚖️ 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
11. 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
13. 13.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) air from the balloon
14. 14.True or false: the swimmer goes backward. (a) True (b) False
15. 15.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
16. 16.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
17. 17.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
18. 18.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a mirror (d) a magnet
20. 20.⚖️ 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
21. 21.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
22. 22.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it turns blue (d) when it gets cold
23. 23.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
24. 24.True or false: air from the balloon goes backward. (a) False (b) True
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a balloon (d) a long string
26. 26.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
27. 27.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) vinegar (d) a balloon
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
30. 30.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rowing boat (d) the swimmer
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
32. 32.True or false: the swimmer goes forward. (a) False (b) True
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
34. 34.True or false: water from the oars goes forward. (a) True (b) False
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) a magnet (d) turmeric powder
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) vinegar (d) a mirror
38. 38.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: the rowing boat goes backward. (a) False (b) True
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up

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