Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 440 · 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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
2. 2.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) yeast (d) a drinking straw
5. 5.True or false: gas from the rocket goes backward. (a) False (b) True
6. 6.⚖️ 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
7. 7.🔮 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
8. 8.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
9. 9.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) water a swimmer pushes (d) the balloon
10. 10.🛟 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
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a battery cell (d) a balloon
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) how big we blow it (d) the same straw
14. 14.🎈 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
15. 15.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
16. 16.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
17. 17.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
18. 18.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) straight down (d) it stays still
20. 20.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
21. 21.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) water from the oars (d) air from the balloon
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
25. 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) sticky tape (d) vinegar
27. 27.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
28. 28.⚖️ 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 measure it (c) we change it
29. 29.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
31. 31.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) turmeric powder (d) two chairs
33. 33.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
34. 34.True or false: the balloon goes backward. (a) False (b) True
35. 35.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
36. 36.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a mirror (d) a balloon
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) yeast (d) a long string
39. 39.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) turmeric powder (d) a mirror
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False

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