Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 812 · 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.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
2. 2.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
3. 3.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
4. 4.⚖️ 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 straw (c) distance it travels (d) the same tape
5. 5.⚖️ 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) distance it travels (c) the slope of the string
6. 6.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) sticky tape (d) two chairs
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
9. 9.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
10. 10.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) water a swimmer pushes (d) the rowing boat
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
12. 12.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
13. 13.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
15. 15.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) less friction (d) no change at all
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) two chairs (c) a magnet (d) vinegar
17. 17.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
19. 19.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) yeast (d) a balloon
20. 20.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
21. 21.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
22. 22.🎈 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
23. 23.⚖️ 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 change it (c) we measure it
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a mirror (d) a drinking straw
25. 25.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
26. 26.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
27. 27.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the balloon (d) the swimmer
28. 28.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
30. 30.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a magnet (d) yeast
31. 31.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
32. 32.True or false: the rocket goes backward. (a) True (b) False
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) a long string (d) sticky tape
34. 34.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) two chairs (d) a magnet
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a magnet (c) two chairs (d) a long string
38. 38.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
39. 39.True or false: air from the balloon goes backward. (a) False (b) True
40. 40.⚖️ 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) distance it travels (c) the same string (d) how big we blow it

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