Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 244 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same tape (c) distance it travels (d) the slope of the string
2. 2.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
4. 4.⚖️ 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
5. 5.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
6. 6.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) no change at all (d) less friction
7. 7.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) turmeric powder (d) a long string
9. 9.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the rowing boat
10. 10.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a magnet (d) a balloon
12. 12.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a mirror (d) a drinking straw
13. 13.True or false: the rowing boat goes forward. (a) True (b) False
14. 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it speeds up (d) it travels farther
16. 16.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rocket (d) the balloon
17. 17.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
18. 18.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
19. 19.🧺 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
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
21. 21.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a mirror (d) two chairs
23. 23.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
24. 24.True or false: a balloon 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 same straw”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) turmeric powder (d) a balloon
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) turmeric powder (d) sticky tape
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) a balloon (d) sticky tape
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a balloon (d) two chairs
30. 30.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
31. 31.True or false: water from the oars goes forward. (a) True (b) False
32. 32.True or false: gas from the rocket goes backward. (a) True (b) False
33. 33.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) sticky tape (d) a balloon
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) yeast (c) a balloon (d) two chairs
36. 36.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
37. 37.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the swimmer (d) water a swimmer pushes
38. 38.⚖️ 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) distance it travels (c) the slope of the string
39. 39.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
40. 40.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True

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