Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 207 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) the same string (d) distance it travels
4. 4.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
5. 5.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
6. 6.True or false: water a swimmer pushes goes forward. (a) False (b) True
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) yeast (d) a magnet
8. 8.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
9. 9.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
10. 10.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
11. 11.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
13. 13.True or false: air from the balloon goes forward. (a) True (b) False
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) turmeric powder (d) two chairs
15. 15.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the balloon
16. 16.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) a battery cell (d) a mirror
17. 17.True or false: a long string is needed for the balloon rocket. (a) False (b) True
18. 18.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
19. 19.True or false: the rowing boat goes backward. (a) False (b) True
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) a mirror (d) a long string
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
22. 22.⚖️ 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
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a drinking straw (d) yeast
27. 27.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
28. 28.📘 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
29. 29.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
30. 30.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
31. 31.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
32. 32.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
33. 33.⚖️ 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 tape
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) sticky tape (d) vinegar
35. 35.🚀 Which of these goes forward? (a) gas from the rocket (b) the rowing boat (c) air from the balloon (d) water from the oars
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) gas from the rocket
38. 38.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) distance it travels (c) how big we blow it (d) the same string

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