Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 985 · 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.True or false: water a swimmer pushes goes backward. (a) True (b) False
2. 2.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) the swimmer (d) air from the balloon
3. 3.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
4. 4.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
5. 5.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it changes colour (d) it gets too heavy
6. 6.⚖️ 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 same tape
7. 7.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the rowing boat
8. 8.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it goes backward first (c) it travels farther (d) it speeds up
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the rocket (d) air from the balloon
11. 11.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
12. 12.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
14. 14.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
15. 15.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) water from the oars (d) the rocket
16. 16.🚀 Which of these goes backward? (a) the swimmer (b) the balloon (c) water a swimmer pushes (d) the rowing boat
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) a balloon (d) a long string
19. 19.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the balloon
20. 20.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a drinking straw (c) a mirror (d) yeast
21. 21.⚖️ 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
22. 22.True or false: the rowing boat goes backward. (a) False (b) True
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) yeast (c) a balloon (d) a long string
24. 24.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
25. 25.⚖️ 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 tape (c) how big we blow it
26. 26.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
27. 27.🔮 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
28. 28.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
29. 29.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a sundial (d) a balloon rocket
30. 30.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
31. 31.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) gas from the rocket (d) air from the balloon
32. 32.True or false: the swimmer goes forward. (a) False (b) True
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
36. 36.True or false: a long string is needed for the balloon rocket. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
38. 38.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) when the air runs out (d) it never stops
39. 39.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) gas from the rocket
40. 40.⚖️ 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 string (c) distance it travels (d) the same straw

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