Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 199 · 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 is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
2. 2.True or false: air from the balloon goes forward. (a) True (b) False
3. 3.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it turns blue (d) when it gets cold
4. 4.🔮 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
5. 5.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
6. 6.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
8. 8.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
9. 9.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) throw them away safely (d) give them to a baby
10. 10.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
11. 11.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) air from the balloon (d) the swimmer
14. 14.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water a swimmer pushes (d) water from the oars
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a magnet (d) a drinking straw
18. 18.⚖️ 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
19. 19.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
20. 20.⚖️ 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) the slope of the string (d) the same tape
21. 21.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a magnet (d) a balloon
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a battery cell (d) a long string
24. 24.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
26. 26.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) two chairs (d) turmeric powder
28. 28.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
29. 29.True or false: water a swimmer pushes goes backward. (a) True (b) False
30. 30.🎈 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
31. 31.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) water a swimmer pushes (d) the balloon
32. 32.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
33. 33.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) two chairs (d) a magnet
35. 35.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
36. 36.True or false: the rowing boat goes backward. (a) True (b) False
37. 37.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes much farther (d) it goes less far
38. 38.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
39. 39.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) a mirror
40. 40.⚖️ 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

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