Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 365 · 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.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
2. 2.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rocket (d) the rowing boat
3. 3.⚖️ 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
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same string (c) the same tape (d) how big we blow it
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a battery cell (d) a drinking straw
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
8. 8.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
9. 9.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
10. 10.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it gets cold (d) when it turns blue
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
15. 15.True or false: gas from the rocket goes backward. (a) True (b) False
16. 16.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
17. 17.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
19. 19.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
20. 20.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) air from the balloon (d) the rowing boat
23. 23.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the rowing boat (d) air from the balloon
24. 24.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
25. 25.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
26. 26.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same tape (c) distance it travels (d) the slope of the string
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) distance it travels (c) how big we blow it
29. 29.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
30. 30.⚖️ 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 change it (c) we keep it the same
31. 31.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
32. 32.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
34. 34.True or false: the balloon goes backward. (a) True (b) False
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a mirror (d) a long string
36. 36.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
38. 38.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
39. 39.True or false: water a swimmer pushes goes forward. (a) True (b) False
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a drinking straw (d) two chairs

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