Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 809 · 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 balloon (b) a long string (c) vinegar (d) two chairs
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
3. 3.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
4. 4.True or false: water from the oars goes backward. (a) True (b) False
5. 5.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
7. 7.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water from the oars (d) gas from the rocket
8. 8.⚖️ 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 string
9. 9.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
10. 10.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
11. 11.True or false: gas from the rocket goes backward. (a) False (b) True
12. 12.True or false: water a swimmer pushes goes backward. (a) False (b) True
13. 13.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) a magnet (d) vinegar
14. 14.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
15. 15.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a long string (c) turmeric powder (d) a mirror
16. 16.⚖️ 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 same straw
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the same string (c) the same straw (d) distance it travels
18. 18.🧺 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
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a magnet (d) sticky tape
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) aim it at your friend (c) blow it till it bursts (d) put string round a neck
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same straw (c) the same tape (d) the slope of the string
23. 23.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rocket (c) gas from the rocket (d) water from the oars
24. 24.🎈 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
25. 25.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the balloon (d) air from the balloon
26. 26.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) a balloon (d) a battery cell
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
31. 31.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
32. 32.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
33. 33.⚖️ 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
34. 34.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) a balloon (d) sticky tape
36. 36.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a balloon (d) yeast
38. 38.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
39. 39.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
40. 40.⚖️ 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

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