Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 841 · 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: a battery cell is not needed for the balloon rocket. (a) False (b) True
2. 2.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) backward (d) straight down
3. 3.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the swimmer (d) gas from the rocket
4. 4.True or false: the balloon goes backward. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
6. 6.⚖️ 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 string
7. 7.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) yeast (d) vinegar
8. 8.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) yeast (d) a long string
10. 10.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a drinking straw (d) a battery cell
11. 11.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it turns blue (d) when it gets cold
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a drinking straw (c) a long string (d) two chairs
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) a drinking straw (d) a long string
14. 14.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
15. 15.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
16. 16.True or false: the rowing boat goes forward. (a) True (b) False
17. 17.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) a battery cell
21. 21.True or false: the swimmer goes forward. (a) True (b) False
22. 22.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) gas from the rocket (d) the rocket
23. 23.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
24. 24.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) yeast (d) two chairs
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a magnet (d) a long string
27. 27.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water from the oars (d) the swimmer
28. 28.True or false: the balloon goes forward. (a) False (b) True
29. 29.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
30. 30.True or false: air from the balloon goes forward. (a) False (b) True
31. 31.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
32. 32.⚖️ 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 slope of the string (c) distance it travels
33. 33.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
34. 34.True or false: water a swimmer pushes goes backward. (a) False (b) True
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
36. 36.True or false: water from the oars goes backward. (a) False (b) True
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) a magnet (d) vinegar
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.⚖️ 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) False (b) True
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) sticky tape (d) a magnet

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