Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 583 · 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.⚖️ 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 straw
2. 2.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
3. 3.🎈 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
4. 4.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water from the oars (d) the rowing boat
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) turmeric powder (d) a long string
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) vinegar
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
9. 9.⚖️ 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 measure it (c) we keep it the same
10. 10.True or false: the rocket goes forward. (a) False (b) True
11. 11.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) yeast (c) sticky tape (d) vinegar
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it speeds up (d) it goes backward first
14. 14.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
15. 15.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
16. 16.⚖️ 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
17. 17.⚖️ 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 string (c) how big we blow it
18. 18.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it gets too heavy (d) it changes colour
19. 19.⚖️ 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) how big we blow it (d) the same string
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🎈 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
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a magnet (d) a drinking straw
23. 23.⚖️ 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
24. 24.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a mirror (d) sticky tape
26. 26.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
27. 27.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
28. 28.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the swimmer (d) the rocket
29. 29.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) gas from the rocket (d) the balloon
30. 30.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
31. 31.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
32. 32.⚖️ 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
33. 33.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
34. 34.True or false: water a swimmer pushes goes backward. (a) False (b) True
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it 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) two chairs (d) turmeric powder
37. 37.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
38. 38.⚖️ 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
39. 39.True or false: the rowing boat goes backward. (a) False (b) True
40. 40.True or false: water from the oars goes backward. (a) True (b) False

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