Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 458 · 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.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
2. 2.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
4. 4.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the balloon (c) the rowing boat (d) the rocket
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a balloon (d) a mirror
6. 6.⚖️ 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
7. 7.🛟 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
8. 8.⚖️ 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
9. 9.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) keep them in your mouth (d) throw them away safely
10. 10.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) water a swimmer pushes (d) air from the balloon
11. 11.True or false: water from the oars goes backward. (a) False (b) True
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a balloon (d) yeast
13. 13.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
15. 15.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
16. 16.📘 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
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) two chairs (d) a long string
18. 18.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
19. 19.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
20. 20.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) vinegar
22. 22.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it holds water (d) it blows air in
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) yeast (d) a balloon
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) two chairs (d) a magnet
25. 25.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
29. 29.⚖️ 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 change it (c) we keep it the same
30. 30.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
31. 31.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a drinking straw (d) sticky tape
33. 33.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a drinking straw (d) turmeric powder
34. 34.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
36. 36.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
38. 38.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) gas from the rocket (d) water from the oars
39. 39.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) water from the oars (d) gas from the rocket
40. 40.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True

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