Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 784 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a drinking straw (d) vinegar
2. 2.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
3. 3.🚀 Which of these goes forward? (a) air from the balloon (b) the rowing boat (c) gas from the rocket (d) water from the oars
4. 4.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) water a swimmer pushes
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
6. 6.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
7. 7.True or false: gas from the rocket goes forward. (a) True (b) False
8. 8.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
9. 9.🚀 Which of these goes forward? (a) the swimmer (b) water from the oars (c) water a swimmer pushes (d) gas from the rocket
10. 10.True or false: the balloon goes forward. (a) True (b) False
11. 11.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
12. 12.True or false: air from the balloon goes backward. (a) True (b) False
13. 13.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
14. 14.True or false: air from the balloon goes forward. (a) True (b) False
15. 15.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a battery cell (c) vinegar (d) a magnet
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
19. 19.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
20. 20.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) gas from the rocket (d) water from the oars
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) sticky tape (d) a long string
22. 22.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) the same string (d) distance it travels
24. 24.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
25. 25.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
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 same straw (c) how big we blow it
27. 27.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) air from the balloon (d) the balloon
28. 28.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
29. 29.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
31. 31.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the same string (d) the slope of the string
34. 34.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a magnet (d) a balloon
37. 37.🎈 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
38. 38.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
39. 39.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
40. 40.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) gas from the rocket

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