Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 143 · 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 does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) sticky tape (d) a battery cell
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same straw (c) distance it travels (d) how big we blow it
5. 5.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) sticky tape (d) a drinking straw
7. 7.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) vinegar (c) a long string (d) a drinking straw
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) two chairs (d) a long string
13. 13.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
14. 14.📘 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
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a drinking straw (c) a balloon (d) a magnet
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
17. 17.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
18. 18.⚖️ 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 tape
19. 19.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
20. 20.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the swimmer (d) water a swimmer pushes
21. 21.🚀 Which of these goes forward? (a) the balloon (b) air from the balloon (c) water a swimmer pushes (d) gas from the rocket
22. 22.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
23. 23.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a magnet (c) a mirror (d) vinegar
25. 25.True or false: air from the balloon goes forward. (a) False (b) True
26. 26.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
27. 27.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rocket (d) gas from the rocket
28. 28.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) yeast (c) a long string (d) a mirror
29. 29.True or false: water from the oars goes forward. (a) True (b) False
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) turmeric powder (d) a long string
31. 31.⚖️ 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 measure it (c) we change it
32. 32.True or false: the balloon goes forward. (a) True (b) False
33. 33.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) two chairs (c) yeast (d) vinegar
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🛟 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
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
40. 40.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) air from the balloon

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