Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 796 · 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 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
2. 2.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.⚖️ 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
5. 5.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
6. 6.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
8. 8.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
9. 9.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
10. 10.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
11. 11.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
12. 12.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the swimmer (d) water from the oars
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) sticky tape (d) turmeric powder
14. 14.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
15. 15.⚖️ 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
16. 16.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a magnet (c) a long string (d) a balloon
18. 18.⚖️ 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
19. 19.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) gas from the rocket (d) the rocket
20. 20.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
21. 21.⚖️ 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 tape (c) distance it travels (d) the same straw
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) vinegar (d) a drinking straw
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) two chairs (d) yeast
24. 24.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) turmeric powder (c) yeast (d) a battery cell
26. 26.🛟 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
27. 27.📘 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
28. 28.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) yeast (d) a balloon
29. 29.⚖️ 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) distance it travels (d) the slope of the string
30. 30.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
31. 31.True or false: water a swimmer pushes goes backward. (a) True (b) False
32. 32.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
33. 33.True or false: a long string is needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a magnet (d) two chairs
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
36. 36.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
37. 37.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the swimmer (d) the balloon
38. 38.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
40. 40.True or false: water from the oars goes forward. (a) True (b) False

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