Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 909 · 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.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
2. 2.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
3. 3.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water from the oars (d) the rowing boat
4. 4.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
5. 5.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rocket (d) gas from the rocket
6. 6.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
7. 7.⚖️ 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
8. 8.⚖️ 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 string (c) how big we blow it (d) distance it travels
9. 9.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
10. 10.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
11. 11.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
12. 12.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
13. 13.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
15. 15.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a fridge magnet (d) a sundial
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) a long string (d) two chairs
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a balloon (d) turmeric powder
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) a balloon (d) sticky tape
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) how big we blow it (c) distance it travels
20. 20.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
21. 21.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
22. 22.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
23. 23.🔮 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
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.True or false: air from the balloon goes forward. (a) True (b) False
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
34. 34.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a balloon (c) turmeric powder (d) a mirror
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) vinegar (c) a magnet (d) two chairs
37. 37.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) gas from the rocket (d) the balloon
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a magnet (d) sticky tape

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