Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 880 · 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? True or false: the same string is kept the same. (a) False (b) True
2. 2.🛟 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
3. 3.⚖️ 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 slope of the string (c) distance it travels (d) the same tape
4. 4.⚖️ 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
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same tape (c) how big we blow it (d) the same straw
6. 6.🎈 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
7. 7.⚖️ 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 change it (c) we measure it
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
9. 9.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the rocket (d) air from the balloon
10. 10.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
11. 11.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) turmeric powder (d) vinegar
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) turmeric powder (d) a balloon
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
15. 15.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
16. 16.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the rocket (c) the balloon (d) the rowing boat
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) a magnet (d) sticky tape
18. 18.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
22. 22.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
23. 23.🧺 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
24. 24.True or false: gas from the rocket goes backward. (a) False (b) True
25. 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
26. 26.🚀 Which of these goes forward? (a) water from the oars (b) the swimmer (c) water a swimmer pushes (d) gas from the rocket
27. 27.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
28. 28.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
29. 29.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
30. 30.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it blows air in (d) it holds water
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) turmeric powder
32. 32.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) sticky tape (c) vinegar (d) a balloon
35. 35.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
36. 36.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
37. 37.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.True or false: water a swimmer pushes goes backward. (a) True (b) False
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it

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