Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 332 · 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 changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
2. 2.🎈 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
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) two chairs
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a battery cell (d) a drinking straw
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
8. 8.⚖️ 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
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
11. 11.⚖️ 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
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
13. 13.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
14. 14.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same string (c) how big we blow it (d) the same tape
16. 16.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
17. 17.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
18. 18.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) vinegar (c) turmeric powder (d) yeast
19. 19.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
20. 20.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
21. 21.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) water from the oars (d) air from the balloon
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a balloon (d) a battery cell
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) yeast (d) vinegar
25. 25.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
26. 26.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
27. 27.True or false: the swimmer goes backward. (a) False (b) True
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) a balloon (d) a mirror
29. 29.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) turmeric powder (d) yeast
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same tape
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) air from the balloon (d) the balloon
34. 34.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
35. 35.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) put string round a neck (d) blow it till it bursts
36. 36.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
37. 37.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water from the oars (d) the rocket
38. 38.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
39. 39.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
40. 40.True or false: water from the oars goes backward. (a) True (b) False

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