Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 986 · 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.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
2. 2.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
3. 3.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
4. 4.🚀 Which of these goes forward? (a) the swimmer (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
5. 5.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
6. 6.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
7. 7.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
8. 8.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
9. 9.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) a drinking straw (d) a balloon
11. 11.⚖️ 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 string (c) distance it travels (d) the same straw
12. 12.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a long string (d) turmeric powder
14. 14.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
15. 15.True or false: gas from the rocket goes backward. (a) False (b) True
16. 16.True or false: water from the oars goes backward. (a) False (b) True
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
19. 19.🛟 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
20. 20.True or false: water from the oars goes forward. (a) True (b) False
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) yeast (d) two chairs
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 keep it the same (b) we change it (c) we measure it
24. 24.⚖️ 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
25. 25.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it makes it heavier (d) it holds water
26. 26.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) water a swimmer pushes (d) gas from the rocket
27. 27.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
28. 28.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
29. 29.⚖️ 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
30. 30.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) gas from the rocket (d) the balloon
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
32. 32.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same tape (c) how big we blow it (d) the slope of the string
35. 35.🎈 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
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
37. 37.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a mirror (c) a magnet (d) a battery cell
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
39. 39.🛟 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
40. 40.True or false: the rowing boat goes backward. (a) True (b) False

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