Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 249 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) turmeric powder (d) a balloon
2. 2.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) two chairs (c) a drinking straw (d) a long string
4. 4.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
5. 5.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) a battery cell (d) a magnet
6. 6.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
7. 7.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
8. 8.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
9. 9.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
10. 10.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) a balloon (d) a long string
12. 12.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
13. 13.⚖️ 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 measure it (c) we keep it the same
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a drinking straw (c) a long string (d) sticky tape
15. 15.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the swimmer (d) the rocket
16. 16.⚖️ 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 same straw (d) the slope of the string
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.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a mirror (d) sticky tape
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) vinegar (d) a long string
22. 22.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
23. 23.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
24. 24.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
25. 25.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
26. 26.True or false: the swimmer goes forward. (a) True (b) False
27. 27.🔮 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
28. 28.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the swimmer (d) gas from the rocket
29. 29.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
30. 30.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
31. 31.True or false: a long string is needed for the balloon rocket. (a) False (b) True
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a long string (d) a battery cell
33. 33.⚖️ 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
34. 34.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
35. 35.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
38. 38.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
39. 39.⚖️ 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) how big we blow it (c) distance it travels (d) the same string
40. 40.True or false: gas from the rocket goes forward. (a) False (b) True

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