Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 22 · 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.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) give them to a baby (d) chew them
2. 2.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a mirror (d) a drinking straw
4. 4.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
5. 5.⚖️ 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 change it (c) we measure it
6. 6.⚖️ 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 same tape (c) the slope of the string (d) the same straw
7. 7.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) when it turns blue (d) it never stops
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same straw (c) distance it travels (d) the same tape
9. 9.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the swimmer
10. 10.True or false: water a swimmer pushes goes backward. (a) False (b) True
11. 11.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
12. 12.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
13. 13.True or false: the rowing boat goes forward. (a) False (b) True
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) vinegar (d) a drinking straw
16. 16.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) sticky tape (d) a magnet
18. 18.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) a magnet pulls it (d) escaping air pushes it
19. 19.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
20. 20.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the balloon (d) the rowing boat
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
22. 22.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
23. 23.True or false: air from the balloon goes backward. (a) False (b) True
24. 24.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly
25. 25.🎈 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
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.⚖️ 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
29. 29.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
30. 30.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) water a swimmer pushes
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a drinking straw (d) sticky tape
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 fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
35. 35.⚖️ 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
36. 36.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) water from the oars (d) the rocket
37. 37.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
38. 38.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
39. 39.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels less far (d) it travels farther
40. 40.🚀 Which of these goes forward? (a) the rocket (b) water a swimmer pushes (c) air from the balloon (d) water from the oars

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