Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 617 · 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.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) sticky tape (c) two chairs (d) a balloon
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a balloon (d) turmeric powder
4. 4.🛟 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
5. 5.⚖️ 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
6. 6.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) sticky tape (c) a mirror (d) a battery cell
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a balloon (d) a long string
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same tape (c) distance it travels (d) how big we blow it
9. 9.True or false: air from the balloon goes forward. (a) True (b) False
10. 10.True or false: gas from the rocket goes backward. (a) False (b) True
11. 11.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) gas from the rocket
12. 12.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
13. 13.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
14. 14.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
15. 15.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the straw is heavy (c) escaping air pushes it (d) the string pulls it
16. 16.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
17. 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
18. 18.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
19. 19.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
20. 20.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
21. 21.⚖️ 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 slope of the string
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a battery cell (d) a balloon
24. 24.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
25. 25.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
26. 26.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a balloon (c) sticky tape (d) two chairs
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
29. 29.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the rocket (d) the rowing boat
30. 30.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
31. 31.True or false: the rowing boat goes forward. (a) False (b) True
32. 32.True or false: water from the oars goes backward. (a) False (b) True
33. 33.True or false: the rowing boat goes backward. (a) True (b) False
34. 34.True or false: air from the balloon goes backward. (a) False (b) True
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a magnet (c) vinegar (d) a battery cell
36. 36.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a magnet (c) a balloon (d) two chairs
38. 38.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
39. 39.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True

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