Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 515 · 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.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
2. 2.True or false: the swimmer goes backward. (a) True (b) False
3. 3.⚖️ 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) the same straw (c) distance it travels (d) how big we blow it
4. 4.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) water a swimmer pushes (d) the balloon
5. 5.🛟 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
6. 6.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it turns into a kite (d) it changes colour
7. 7.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
8. 8.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the rowing boat (d) the rocket
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a battery cell (c) a magnet (d) vinegar
10. 10.True or false: a long string is needed for the balloon rocket. (a) True (b) False
11. 11.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
12. 12.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) a mirror (d) a magnet
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
15. 15.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
16. 16.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
17. 17.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) a long string (d) a mirror
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) turmeric powder (d) two chairs
19. 19.True or false: water from the oars goes forward. (a) True (b) False
20. 20.🚀 Which of these goes forward? (a) the balloon (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
21. 21.🚀 Which of these goes backward? (a) the balloon (b) gas from the rocket (c) the swimmer (d) the rowing boat
22. 22.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) air from the balloon (d) the rocket
23. 23.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
24. 24.⚖️ 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 straw
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
29. 29.True or false: the rowing boat goes backward. (a) False (b) True
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a magnet (d) sticky tape
31. 31.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
32. 32.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) water from the oars (d) air from the balloon
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the slope of the string (c) distance it travels (d) how big we blow it
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a balloon (d) a drinking straw
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a magnet (d) a mirror

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