Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 920 · 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 goes forward? (a) water a swimmer pushes (b) water from the oars (c) the rocket (d) gas from the rocket
2. 2.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
3. 3.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
4. 4.⚖️ 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 change it (c) we keep it the same
5. 5.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
6. 6.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
7. 7.True or false: water a swimmer pushes goes forward. (a) False (b) True
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same tape (c) the same string (d) how big we blow it
9. 9.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rowing boat (c) gas from the rocket (d) water from the oars
10. 10.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
11. 11.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) keep them in your mouth (d) chew them
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) vinegar (c) sticky tape (d) a long string
14. 14.True or false: the rocket goes backward. (a) True (b) False
15. 15.True or false: air from the balloon goes backward. (a) False (b) True
16. 16.⚖️ 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
17. 17.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a drinking straw (d) yeast
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
20. 20.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
21. 21.True or false: yeast is needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a battery cell (d) vinegar
23. 23.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) gas from the rocket (d) the rocket
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) vinegar (d) a long string
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a magnet (d) a balloon
28. 28.🔮 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
29. 29.⚖️ 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
30. 30.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
31. 31.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
32. 32.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
33. 33.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
34. 34.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it turns into a kite (d) it gets too heavy
35. 35.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.⚖️ 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 measure it (c) we keep it the same
38. 38.⚖️ 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 slope of the string
39. 39.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
40. 40.True or false: air from the balloon goes forward. (a) True (b) False

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