Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 976 · 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 should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
2. 2.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
3. 3.True or false: water from the oars goes forward. (a) False (b) True
4. 4.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
5. 5.⚖️ 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 slope of the string
6. 6.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a drinking straw (d) vinegar
10. 10.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
11. 11.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a battery cell (d) a balloon
12. 12.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) sticky tape (d) two chairs
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) the same straw (d) the same string
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) how big we blow it (c) the same string (d) the same straw
16. 16.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
17. 17.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the rowing boat (c) gas from the rocket (d) water from the oars
18. 18.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the rowing boat (d) air from the balloon
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a balloon (d) yeast
21. 21.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
22. 22.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
23. 23.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it speeds up (d) it goes backward first
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) two chairs (d) a battery cell
26. 26.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) give them to a baby (d) chew them
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
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.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
30. 30.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
31. 31.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a long string (c) two chairs (d) a drinking straw
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
34. 34.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
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) turmeric powder (b) a mirror (c) two chairs (d) vinegar
37. 37.🚀 Which of these goes backward? (a) the rowing boat (b) water a swimmer pushes (c) the balloon (d) the rocket
38. 38.True or false: the rowing boat goes backward. (a) True (b) False
39. 39.True or false: the rowing boat goes forward. (a) True (b) False
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) False (b) True

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