Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 343 · 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.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a balloon (d) a magnet
2. 2.⚖️ 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
3. 3.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
4. 4.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) two chairs (d) a balloon
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
7. 7.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
8. 8.⚖️ 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
9. 9.True or false: water from the oars goes backward. (a) True (b) False
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it speeds up (d) it travels less far
11. 11.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
12. 12.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
13. 13.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
14. 14.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
15. 15.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
16. 16.⚖️ 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
17. 17.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
18. 18.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
22. 22.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a drinking straw (d) a long string
24. 24.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) yeast (d) a drinking straw
26. 26.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
28. 28.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
29. 29.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: the rocket goes forward. (a) True (b) False
31. 31.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
33. 33.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
34. 34.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a balloon (d) a mirror
36. 36.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the rocket (d) air from the balloon
37. 37.⚖️ 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) the same string (c) the same tape (d) how big we blow it
38. 38.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) water a swimmer pushes (d) water from the oars

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