Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 404 · 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.True or false: the rowing boat goes forward. (a) True (b) False
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two chairs (d) vinegar
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
4. 4.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
5. 5.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it changes colour (d) it gets too heavy
6. 6.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same straw
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a long string (d) a mirror
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) it goes faster (d) less friction
11. 11.⚖️ 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
12. 12.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
13. 13.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
14. 14.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
15. 15.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
16. 16.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we measure it (c) we change it
20. 20.⚖️ 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
21. 21.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
22. 22.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
23. 23.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
24. 24.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a long string (d) a balloon
26. 26.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
27. 27.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the balloon (d) the rocket
28. 28.🚀 Which of these goes backward? (a) the rocket (b) air from the balloon (c) the swimmer (d) the balloon
29. 29.True or false: the swimmer goes forward. (a) True (b) False
30. 30.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
31. 31.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
32. 32.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) yeast (d) two chairs
35. 35.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
36. 36.⚖️ 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
37. 37.🧺 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
38. 38.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a drinking straw (c) a long string (d) a balloon

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