Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 817 · 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.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
2. 2.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) water from the oars (d) water a swimmer pushes
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) vinegar (d) a magnet
4. 4.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same string (c) the slope of the string (d) the same tape
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a mirror (d) a balloon
8. 8.🚀 Which of these goes backward? (a) the rocket (b) gas from the rocket (c) the balloon (d) the swimmer
9. 9.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
10. 10.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
11. 11.🔮 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
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a long string (d) turmeric powder
17. 17.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) gas from the rocket (d) air from the balloon
18. 18.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
19. 19.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) a drinking straw (d) a long string
21. 21.🚀 Which of these goes forward? (a) the rocket (b) gas from the rocket (c) water a swimmer pushes (d) air from the balloon
22. 22.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a mirror (d) a drinking straw
23. 23.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
24. 24.True or false: water from the oars goes backward. (a) True (b) False
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) vinegar (c) a balloon (d) sticky tape
29. 29.🛟 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
30. 30.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
31. 31.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) vinegar (c) a drinking straw (d) a balloon
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
34. 34.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
37. 37.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) two chairs (d) a magnet
39. 39.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
40. 40.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward

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