Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 964 · 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 use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) a balloon (d) sticky tape
3. 3.⚖️ 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
4. 4.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) straight down (d) backward
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the slope of the string (c) distance it travels (d) the same string
8. 8.True or false: water from the oars goes forward. (a) True (b) False
9. 9.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) air from the balloon
10. 10.🛟 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
11. 11.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.⚖️ 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
15. 15.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
16. 16.🚀 Which of these goes backward? (a) water from the oars (b) the rocket (c) the swimmer (d) the balloon
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
18. 18.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
19. 19.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
20. 20.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
21. 21.True or false: the rowing boat goes backward. (a) False (b) True
22. 22.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
23. 23.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the slope of the string (c) how big we blow it (d) distance it travels
25. 25.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a drinking straw (d) turmeric powder
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a balloon (d) yeast
29. 29.True or false: gas from the rocket goes backward. (a) True (b) False
30. 30.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a drinking straw (d) vinegar
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) sticky tape (d) a long string
33. 33.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
34. 34.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a magnet (d) a drinking straw
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) two chairs (d) a drinking straw
37. 37.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
38. 38.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a long string (d) two chairs

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