Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 757 · 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) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
2. 2.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
3. 3.⚖️ 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
4. 4.⚖️ 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 slope of the string (c) the same string (d) the same straw
5. 5.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
6. 6.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a balloon (d) a magnet
8. 8.True or false: air from the balloon goes backward. (a) True (b) False
9. 9.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) sticky tape
15. 15.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
16. 16.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
18. 18.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
20. 20.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
21. 21.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the rowing boat
22. 22.🎈 What is the job of the straw on the string? (a) it blows air in (b) it guides the balloon (c) it makes it heavier (d) it holds water
23. 23.⚖️ 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 string
24. 24.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water from the oars (d) the swimmer
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) a long string (d) sticky tape
26. 26.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
27. 27.True or false: the balloon goes backward. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) two chairs (d) yeast
31. 31.⚖️ 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 straw (c) the same string (d) distance it travels
32. 32.⚖️ 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
33. 33.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
35. 35.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
36. 36.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) vinegar (d) a balloon
38. 38.⚖️ 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
39. 39.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
40. 40.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) water from the oars (d) the rocket

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids