Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 34 · 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 needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) vinegar (d) a magnet
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) how big we blow it (c) the same tape (d) distance it travels
3. 3.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
4. 4.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the swimmer
5. 5.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
6. 6.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
7. 7.True or false: air from the balloon goes backward. (a) False (b) True
8. 8.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the rocket (d) water from the oars
9. 9.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
10. 10.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
11. 11.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
12. 12.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
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.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
15. 15.True or false: the balloon goes backward. (a) True (b) False
16. 16.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
17. 17.⚖️ 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
18. 18.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
20. 20.⚖️ 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 straw (c) how big we blow it (d) the same string
21. 21.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
22. 22.True or false: water from the oars goes forward. (a) True (b) False
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a mirror (d) yeast
24. 24.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the balloon (d) the rowing boat
27. 27.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
28. 28.True or false: the rowing boat goes backward. (a) False (b) True
29. 29.🔮 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
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) sticky tape (d) a balloon
31. 31.True or false: the balloon goes forward. (a) False (b) True
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
33. 33.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
35. 35.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
36. 36.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
37. 37.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
38. 38.🛟 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
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) yeast
40. 40.True or false: a magnet is needed for the balloon rocket. (a) False (b) True

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