Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 407 · 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 tape is kept the same. (a) True (b) False
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) yeast (d) a long string
3. 3.⚖️ 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 measure it (c) we change it
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
5. 5.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
9. 9.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
10. 10.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) two chairs (d) a mirror
13. 13.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) distance it travels (d) how big we blow it
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) sticky tape (d) two chairs
18. 18.⚖️ 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 straw (c) the slope of the string (d) how big we blow it
19. 19.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) water from the oars
20. 20.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) two chairs (c) vinegar (d) turmeric powder
21. 21.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
22. 22.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) yeast (d) a magnet
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) a mirror
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.🔮 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
29. 29.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
31. 31.🔮 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
32. 32.True or false: water from the oars goes backward. (a) True (b) False
33. 33.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a magnet (d) two chairs
35. 35.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a long string (d) vinegar
36. 36.True or false: sticky tape is 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: how big we blow it is the one thing we change. (a) False (b) True
38. 38.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) air from the balloon (d) the swimmer
39. 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
40. 40.🚀 Which of these goes forward? (a) the swimmer (b) water from the oars (c) air from the balloon (d) water a swimmer pushes

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