Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 308 · 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 goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rowing boat (d) gas from the rocket
2. 2.🛟 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
3. 3.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a battery cell (d) a long string
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
6. 6.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) sticky tape (d) a magnet
8. 8.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the swimmer (d) water from the oars
9. 9.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
10. 10.True or false: air from the balloon goes forward. (a) True (b) False
11. 11.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a drinking straw (d) sticky tape
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) sticky tape (d) a long string
14. 14.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
16. 16.True or false: the rocket goes forward. (a) True (b) False
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) vinegar
18. 18.⚖️ 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
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a sundial (d) a mirror
21. 21.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) throw them away safely (d) keep them in your mouth
22. 22.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.True or false: water from the oars goes backward. (a) False (b) True
25. 25.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
26. 26.True or false: the swimmer goes backward. (a) True (b) False
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
28. 28.⚖️ 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) distance it travels (c) the same tape (d) how big we blow it
29. 29.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
30. 30.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a mirror (d) a magnet
32. 32.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the swimmer (d) the rocket
33. 33.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) water a swimmer pushes (d) the swimmer
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) a long string (d) a battery cell
36. 36.⚖️ 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) the same straw (d) the same string
37. 37.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
40. 40.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed

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