Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 861 · 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.True or false: air from the balloon goes forward. (a) True (b) False
2. 2.⚖️ 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
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
4. 4.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
6. 6.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) how big we blow it (d) distance it travels
10. 10.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) yeast (d) a battery cell
12. 12.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rocket (d) air from the balloon
13. 13.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) two chairs (d) a mirror
14. 14.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rowing boat (c) the rocket (d) the balloon
15. 15.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
17. 17.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
18. 18.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
19. 19.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a battery cell (d) a balloon
22. 22.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it guides the balloon (d) it holds water
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
24. 24.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) gas from the rocket
25. 25.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
26. 26.True or false: the swimmer goes forward. (a) False (b) True
27. 27.True or false: gas from the rocket goes backward. (a) True (b) False
28. 28.⚖️ 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) distance it travels (c) how big we blow it
29. 29.🛟 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
30. 30.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
32. 32.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) sticky tape (c) a magnet (d) a mirror
33. 33.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
36. 36.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
38. 38.True or false: yeast is needed for the balloon rocket. (a) True (b) False
39. 39.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a drinking straw (d) vinegar

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