Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 947 · 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 is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a long string (d) a battery cell
4. 4.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
5. 5.True or false: the rowing boat goes forward. (a) False (b) True
6. 6.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the same string (d) the slope of the string
8. 8.True or false: the swimmer goes forward. (a) False (b) True
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a drinking straw (d) a balloon
10. 10.True or false: the swimmer goes backward. (a) True (b) False
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) sticky tape (d) two chairs
12. 12.True or false: air from the balloon goes forward. (a) False (b) True
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
14. 14.⚖️ 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
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a battery cell (c) sticky tape (d) a drinking straw
17. 17.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the rowing boat (d) the balloon
18. 18.⚖️ 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) the same tape (d) distance it travels
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
20. 20.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it changes colour (d) it can pop loudly
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
24. 24.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
25. 25.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
26. 26.True or false: the balloon goes forward. (a) True (b) False
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) turmeric powder (c) a balloon (d) a magnet
28. 28.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) air from the balloon
29. 29.⚖️ 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
30. 30.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
31. 31.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
32. 32.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
33. 33.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) water a swimmer pushes (d) the rocket
34. 34.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
35. 35.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the rocket (d) gas from the rocket
36. 36.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) two chairs (d) a balloon
38. 38.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
39. 39.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) a long string (d) a magnet
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) yeast

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