Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 269 · 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) True (b) False
2. 2.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
3. 3.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) more friction, less far (d) less friction
5. 5.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) a long string (d) sticky tape
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) turmeric powder
8. 8.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a long string (d) a mirror
9. 9.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rowing boat (d) air from the balloon
10. 10.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) two chairs (d) yeast
12. 12.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
13. 13.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
14. 14.True or false: gas from the rocket goes forward. (a) False (b) True
15. 15.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the rocket
16. 16.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
17. 17.🔮 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
18. 18.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a mirror (c) two chairs (d) a battery cell
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same string (c) the slope of the string (d) how big we blow 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) False (b) True
21. 21.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) sticky tape (d) a magnet
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) sticky tape (d) vinegar
26. 26.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
27. 27.True or false: air from the balloon goes forward. (a) False (b) True
28. 28.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) sticky tape (d) a drinking straw
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
31. 31.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) yeast (c) sticky tape (d) a long string
32. 32.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) yeast (d) a drinking straw
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) sticky tape (d) vinegar
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
37. 37.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
39. 39.True or false: the rowing boat goes forward. (a) False (b) True
40. 40.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward

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