Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 351 · 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 a battery cell for the balloon rocket? (a) not needed (b) needed
2. 2.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
3. 3.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
4. 4.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
5. 5.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
6. 6.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the swimmer
7. 7.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
8. 8.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) keep it away from faces (d) blow it till it bursts
9. 9.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
10. 10.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the string pulls it (c) the straw is heavy (d) a magnet pulls it
11. 11.True or false: yeast is needed for the balloon rocket. (a) False (b) True
12. 12.🔮 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
13. 13.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) turmeric powder
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a long string (d) a drinking straw
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a battery cell (d) a balloon
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
19. 19.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
20. 20.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
22. 22.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
23. 23.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
24. 24.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the swimmer (d) the balloon
25. 25.True or false: water a swimmer pushes goes backward. (a) False (b) True
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) two chairs (d) a long string
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a mirror (c) a battery cell (d) vinegar
28. 28.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) yeast (c) turmeric powder (d) a battery cell
29. 29.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
30. 30.⚖️ 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
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
33. 33.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
34. 34.🔮 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
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) a balloon (d) a magnet
36. 36.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
37. 37.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
38. 38.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
39. 39.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False

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