Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 896 · 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.⚖️ 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 slope of the string
2. 2.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the balloon
3. 3.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
4. 4.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a long string (d) a magnet
5. 5.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) a balloon (d) a long string
7. 7.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) two chairs (d) a long string
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
11. 11.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) distance it travels (d) the same straw
13. 13.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a battery cell (c) turmeric powder (d) a long string
14. 14.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
15. 15.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) the string pulls it (d) a magnet pulls it
16. 16.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
18. 18.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) a battery cell (d) sticky tape
20. 20.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
21. 21.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it gets cold (d) when it turns blue
22. 22.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
23. 23.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the balloon (d) water a swimmer pushes
24. 24.🛟 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
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 keep it the same (b) we change it (c) we measure it
26. 26.True or false: the balloon goes backward. (a) False (b) True
27. 27.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
28. 28.True or false: gas from the rocket goes backward. (a) True (b) False
29. 29.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
30. 30.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
31. 31.⚖️ 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
32. 32.True or false: the swimmer goes backward. (a) True (b) False
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.True or false: a long string is needed for the balloon rocket. (a) False (b) True
35. 35.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
36. 36.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the swimmer (d) the rowing boat
37. 37.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
38. 38.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) sticky tape (c) two chairs (d) a long string
40. 40.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward

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