Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 434 · 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.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when the air runs out (d) when it turns blue
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a long string (d) yeast
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) a magnet (d) turmeric powder
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
8. 8.⚖️ 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 same string (c) the same straw (d) how big we blow it
9. 9.True or false: the rowing boat goes forward. (a) True (b) False
10. 10.⚖️ 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
11. 11.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
13. 13.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the swimmer (d) water from the oars
14. 14.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
15. 15.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) sticky tape (d) two chairs
17. 17.True or false: the swimmer goes backward. (a) True (b) False
18. 18.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
19. 19.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
21. 21.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
22. 22.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
23. 23.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a mirror (d) sticky tape
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a balloon (c) a drinking straw (d) sticky tape
26. 26.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
27. 27.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
28. 28.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
29. 29.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
30. 30.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) two chairs (d) vinegar
32. 32.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
34. 34.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a fridge magnet (d) a sundial
36. 36.True or false: water from the oars goes backward. (a) True (b) False
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a long string (c) sticky tape (d) two chairs
38. 38.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
39. 39.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
40. 40.True or false: gas from the rocket goes backward. (a) True (b) False

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