Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 59 · 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.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same straw (c) the same tape (d) distance it travels
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) turmeric powder (d) a long string
3. 3.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) sticky tape (d) a drinking straw
4. 4.True or false: the rowing boat goes backward. (a) False (b) True
5. 5.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
7. 7.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
8. 8.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
9. 9.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the balloon (d) the rowing boat
10. 10.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
11. 11.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
12. 12.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it makes it heavier (d) it guides the balloon
13. 13.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a mirror (c) two chairs (d) a long string
15. 15.⚖️ 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
16. 16.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) escaping air pushes it (d) a magnet pulls it
17. 17.True or false: gas from the rocket goes forward. (a) False (b) True
18. 18.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
19. 19.🎈 When does the balloon rocket stop? (a) when the air runs out (b) it never stops (c) when it turns blue (d) when it gets cold
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the same string (d) the slope of the string
21. 21.⚖️ 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
22. 22.⚖️ 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 slope of the string
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
24. 24.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: the swimmer goes backward. (a) True (b) False
26. 26.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
27. 27.True or false: water from the oars goes backward. (a) False (b) True
28. 28.⚖️ 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) distance it travels (c) the same tape
29. 29.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a balloon (d) vinegar
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the rowing boat
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a long string (d) two chairs
34. 34.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) blow it till it bursts (d) put string round a neck
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) yeast (d) a drinking straw
37. 37.True or false: air from the balloon goes forward. (a) True (b) False
38. 38.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
39. 39.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
40. 40.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) turmeric powder (c) a long string (d) a mirror

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