Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 725 · 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 forward? (a) air from the balloon (b) water from the oars (c) the swimmer (d) water a swimmer pushes
2. 2.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
3. 3.True or false: water a swimmer pushes goes backward. (a) False (b) True
4. 4.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
5. 5.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it flies off the string (d) it turns into a kite
6. 6.True or false: air from the balloon goes forward. (a) True (b) False
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) sticky tape (d) a balloon
8. 8.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
9. 9.⚖️ 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
10. 10.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a battery cell (d) a drinking straw
12. 12.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
13. 13.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) the string pulls it (d) a magnet pulls it
14. 14.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
15. 15.True or false: a long string is needed for the balloon rocket. (a) True (b) False
16. 16.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
17. 17.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) gas from the rocket (d) the balloon
18. 18.True or false: water from the oars goes forward. (a) True (b) False
19. 19.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a mirror (c) sticky tape (d) a drinking straw
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a long string (d) a magnet
21. 21.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water from the oars (d) water a swimmer pushes
22. 22.⚖️ 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
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) vinegar (d) sticky tape
24. 24.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) turmeric powder (d) a drinking straw
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) sticky tape (d) a battery cell
26. 26.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) more friction, less far (c) less friction (d) no change at all
27. 27.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) a magnet (d) a balloon
29. 29.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
30. 30.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
31. 31.⚖️ 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 measure it (c) we change it
32. 32.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) vinegar (d) a balloon
33. 33.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
35. 35.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
36. 36.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
37. 37.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
38. 38.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
39. 39.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a mirror (c) a drinking straw (d) a long string

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