Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 72 · 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.True or false: the rowing boat goes backward. (a) True (b) False
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) vinegar (d) two chairs
3. 3.⚖️ 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
4. 4.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
6. 6.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
7. 7.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) a magnet
8. 8.⚖️ 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
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
10. 10.⚖️ 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 same string (d) distance it travels
11. 11.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
14. 14.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
17. 17.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) gas from the rocket (d) the rocket
18. 18.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a magnet (c) a balloon (d) vinegar
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
20. 20.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
21. 21.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
22. 22.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
25. 25.True or false: the balloon goes forward. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the slope of the string (c) distance it travels
27. 27.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) it goes faster (d) less friction
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.📘 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
30. 30.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
31. 31.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
32. 32.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) turmeric powder (d) a balloon
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) sticky tape (c) a long string (d) a balloon
35. 35.True or false: the swimmer goes backward. (a) True (b) False
36. 36.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) air from the balloon (d) the swimmer
37. 37.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
38. 38.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) water a swimmer pushes
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
40. 40.⚖️ 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

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