Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 64 · 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: water from the oars goes backward. (a) False (b) True
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
3. 3.🎈 What is the job of the straw on the string? (a) it holds water (b) it guides the balloon (c) it blows air in (d) it makes it heavier
4. 4.⚖️ 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
5. 5.True or false: gas from the rocket goes forward. (a) False (b) True
6. 6.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a balloon (d) a magnet
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same tape (c) how big we blow it (d) the slope of the string
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
10. 10.True or false: the rocket goes forward. (a) False (b) True
11. 11.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) sticky tape (d) a battery cell
13. 13.True or false: air from the balloon goes backward. (a) False (b) True
14. 14.True or false: water a swimmer pushes goes forward. (a) True (b) False
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) sticky tape (d) a balloon
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
21. 21.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
23. 23.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
24. 24.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
25. 25.⚖️ 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
26. 26.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
27. 27.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) water a swimmer pushes (d) air from the balloon
28. 28.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
29. 29.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the rowing boat (d) air from the balloon
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) how big we blow it (c) the same tape (d) the same straw
31. 31.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
32. 32.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
33. 33.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) a long string (d) two chairs
35. 35.⚖️ 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
36. 36.True or false: yeast is needed for the balloon rocket. (a) True (b) False
37. 37.🛟 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
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) turmeric powder (d) a drinking straw
39. 39.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) turmeric powder (c) a magnet (d) two chairs

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