Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 549 · 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 of these is not needed for the balloon rocket? (a) a mirror (b) sticky tape (c) a drinking straw (d) a balloon
2. 2.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
3. 3.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
4. 4.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
5. 5.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.True or false: air from the balloon goes backward. (a) True (b) False
8. 8.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
9. 9.⚖️ 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 measure it (c) we change it
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
11. 11.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the swimmer (d) the rocket
12. 12.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) vinegar (d) two chairs
15. 15.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
16. 16.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
17. 17.🚀 Which of these goes forward? (a) the balloon (b) water from the oars (c) air from the balloon (d) water a swimmer pushes
18. 18.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
19. 19.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the swimmer
20. 20.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
21. 21.⚖️ 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) how big we blow it (c) the same tape (d) distance it travels
22. 22.🎈 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
23. 23.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
24. 24.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
25. 25.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
26. 26.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
27. 27.True or false: air from the balloon goes forward. (a) False (b) True
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) sticky tape (c) two chairs (d) a long string
31. 31.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) a magnet (d) vinegar
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same string (c) distance it travels
33. 33.⚖️ 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
34. 34.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
35. 35.🧺 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) yeast
36. 36.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
37. 37.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a long string (c) sticky tape (d) two chairs
39. 39.True or false: the swimmer goes backward. (a) True (b) False
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same

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