Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 543 · 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.🚀 Which of these goes forward? (a) gas from the rocket (b) the swimmer (c) water from the oars (d) water a swimmer pushes
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
4. 4.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
5. 5.True or false: the balloon goes backward. (a) True (b) False
6. 6.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
7. 7.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a long string (c) a drinking straw (d) a balloon
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) sticky tape (d) a battery cell
11. 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the same tape (d) the same string
13. 13.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
14. 14.⚖️ 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 straw
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a long string (d) a magnet
16. 16.⚖️ 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
17. 17.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
18. 18.⚖️ 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) the same straw (d) how big we blow it
19. 19.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
20. 20.🔮 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
21. 21.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
22. 22.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a battery cell (d) a drinking straw
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) two chairs (d) sticky tape
26. 26.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it turns into a kite (d) it changes colour
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) two chairs (c) a long string (d) sticky tape
28. 28.True or false: the rocket goes backward. (a) True (b) False
29. 29.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
30. 30.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a drinking straw (d) a mirror
31. 31.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
32. 32.True or false: air from the balloon goes forward. (a) True (b) False
33. 33.⚖️ 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
34. 34.True or false: the rowing boat goes forward. (a) False (b) True
35. 35.True or false: the rowing boat goes backward. (a) True (b) False
36. 36.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a balloon rocket (d) a fridge magnet
37. 37.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) vinegar
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
40. 40.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) water a swimmer pushes (d) the rocket

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