Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 375 · 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: two chairs is not needed for the balloon rocket. (a) True (b) False
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) two chairs (d) sticky tape
3. 3.True or false: yeast is needed for the balloon rocket. (a) False (b) True
4. 4.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
5. 5.⚖️ 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 slope of the string (c) the same straw (d) how big we blow it
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
7. 7.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
9. 9.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
10. 10.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
11. 11.True or false: the rocket goes backward. (a) False (b) True
12. 12.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) water from the oars (d) water a swimmer pushes
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
14. 14.🛟 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
15. 15.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
16. 16.⚖️ 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 same string (c) distance it travels
17. 17.⚖️ 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
18. 18.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
19. 19.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
20. 20.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
22. 22.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
23. 23.True or false: the rowing boat goes forward. (a) True (b) False
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) a drinking straw (d) two chairs
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a drinking straw (d) a mirror
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
29. 29.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
30. 30.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
31. 31.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) a drinking straw (d) a balloon
35. 35.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) gas from the rocket (d) water from the oars
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.⚖️ 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) how big we blow it
38. 38.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) turmeric powder (d) a balloon
40. 40.True or false: water a swimmer pushes goes backward. (a) True (b) False

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