Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 998 · 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 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
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
4. 4.🎈 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
5. 5.⚖️ 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
6. 6.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) less friction (d) more friction, less far
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a balloon (c) a battery cell (d) yeast
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
12. 12.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
13. 13.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
14. 14.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) air from the balloon
15. 15.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a drinking straw (c) yeast (d) a magnet
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) how big we blow it (d) the slope of the string
18. 18.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rocket (d) air from the balloon
19. 19.True or false: the rowing boat goes backward. (a) False (b) True
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) sticky tape (d) a long string
21. 21.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
22. 22.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) yeast (d) a drinking straw
24. 24.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) the same straw (d) how big we blow it
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
27. 27.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a long string (c) turmeric powder (d) yeast
29. 29.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a battery cell (d) a drinking straw
31. 31.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
32. 32.True or false: yeast is needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) a balloon (d) two chairs
34. 34.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ 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 same tape
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
37. 37.⚖️ 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
38. 38.True or false: the swimmer goes forward. (a) False (b) True
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
40. 40.True or false: two chairs is needed for the balloon rocket. (a) True (b) False

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