Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 70 · 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 the one thing we change? (a) how big we blow it (b) the same string (c) the same straw (d) the slope of the string
2. 2.True or false: the balloon goes backward. (a) True (b) False
3. 3.True or false: water from the oars goes backward. (a) True (b) False
4. 4.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
5. 5.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the balloon (d) the swimmer
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same tape (c) how big we blow it (d) distance it travels
8. 8.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a magnet (d) a drinking straw
10. 10.True or false: the rocket goes backward. (a) False (b) True
11. 11.⚖️ 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 tape (c) distance it travels
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) vinegar (d) a balloon
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a mirror (c) a long string (d) a balloon
15. 15.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
16. 16.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) it never stops (d) when it turns blue
17. 17.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
18. 18.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
19. 19.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
20. 20.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
21. 21.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
22. 22.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
23. 23.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
24. 24.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
25. 25.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
26. 26.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a battery cell (d) two chairs
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) a magnet (d) a drinking straw
29. 29.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
30. 30.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
31. 31.⚖️ 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
32. 32.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) a mirror
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
36. 36.True or false: the rowing boat goes backward. (a) True (b) False
37. 37.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
38. 38.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it

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