Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 545 · 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 backward? (a) the rowing boat (b) the balloon (c) the rocket (d) water from the oars
2. 2.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) less friction (d) it goes faster
4. 4.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
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 slope of the string (c) the same string (d) the same straw
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a balloon rocket (c) a sundial (d) a mirror
9. 9.🎈 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
10. 10.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) a magnet (d) a drinking straw
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
13. 13.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
14. 14.🧺 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) turmeric powder
15. 15.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
16. 16.🔮 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
17. 17.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
18. 18.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) keep them in your mouth (d) chew them
19. 19.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
20. 20.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
21. 21.⚖️ 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 slope of the string (c) distance it travels (d) the same string
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) aim it at your friend (d) put string round a neck
23. 23.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a balloon (c) a long string (d) two chairs
26. 26.True or false: gas from the rocket goes forward. (a) False (b) True
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a balloon (c) sticky tape (d) two chairs
28. 28.⚖️ 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 straw (c) how big we blow it
29. 29.True or false: a long string is needed for the balloon rocket. (a) False (b) True
30. 30.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
31. 31.🎈 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
32. 32.🚀 Which of these goes forward? (a) air from the balloon (b) the rowing boat (c) water a swimmer pushes (d) water from the oars
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
35. 35.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
36. 36.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
37. 37.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) when it gets cold (d) it never stops
38. 38.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
39. 39.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
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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