Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 710 · 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.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
2. 2.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) gas from the rocket (d) the rocket
3. 3.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
4. 4.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a sundial (d) a mirror
5. 5.⚖️ 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 string (c) the same straw (d) the same tape
6. 6.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) vinegar (d) yeast
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) yeast (c) turmeric powder (d) a battery cell
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) two chairs (d) a balloon
11. 11.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
12. 12.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it gets cold (d) when it turns blue
15. 15.True or false: water from the oars goes forward. (a) False (b) True
16. 16.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) blow it till it bursts (d) put string round a neck
18. 18.⚖️ 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 keep it the same (c) we change it
19. 19.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
20. 20.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
21. 21.🔮 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
22. 22.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
23. 23.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a long string (d) yeast
24. 24.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
25. 25.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) the rowing boat (d) air from the balloon
26. 26.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) gas from the rocket (d) water a swimmer pushes
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) sticky tape (d) a drinking straw
30. 30.True or false: air from the balloon goes forward. (a) False (b) True
31. 31.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
32. 32.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a long string (d) sticky tape
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
35. 35.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the rocket (d) the rowing boat
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the slope of the string (c) the same tape (d) how big we blow it
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) two chairs (d) a drinking straw
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a long string (d) a battery cell
39. 39.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
40. 40.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed

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