Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 340 · 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.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) how big we blow it (d) the same string
3. 3.⚖️ 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
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a mirror (d) a balloon
5. 5.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
6. 6.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
7. 7.True or false: air from the balloon goes forward. (a) True (b) False
8. 8.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
9. 9.True or false: the balloon goes forward. (a) False (b) True
10. 10.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
11. 11.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a magnet (d) a battery cell
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a balloon rocket (d) a fridge magnet
14. 14.⚖️ 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
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the same string (d) the same straw
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a drinking straw (d) vinegar
17. 17.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
19. 19.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
20. 20.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
21. 21.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) air from the balloon (d) gas from the rocket
22. 22.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
23. 23.🚀 Which of these goes backward? (a) gas from the rocket (b) the swimmer (c) the rocket (d) the balloon
24. 24.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
25. 25.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
26. 26.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a mirror (d) a drinking straw
29. 29.True or false: water a swimmer pushes goes backward. (a) True (b) False
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) sticky tape (d) two chairs
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
33. 33.True or false: the swimmer goes backward. (a) False (b) True
34. 34.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
35. 35.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
36. 36.True or false: air from the balloon goes backward. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
38. 38.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
39. 39.True or false: gas from the rocket goes forward. (a) False (b) True
40. 40.True or false: the swimmer goes forward. (a) False (b) True

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