Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 874 · 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) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
2. 2.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) turmeric powder (c) a magnet (d) sticky tape
4. 4.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) gas from the rocket
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a mirror (d) a fridge magnet
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
7. 7.True or false: the rocket goes forward. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) yeast (d) a battery cell
10. 10.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) how big we blow it (c) the same tape (d) the same straw
12. 12.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) a drinking straw (d) yeast
14. 14.🧺 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
15. 15.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
16. 16.True or false: water a swimmer pushes goes backward. (a) False (b) True
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) vinegar (c) a balloon (d) two chairs
18. 18.True or false: water a swimmer pushes goes forward. (a) True (b) False
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a balloon (d) a long string
20. 20.True or false: gas from the rocket goes forward. (a) True (b) False
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
23. 23.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
24. 24.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
25. 25.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
26. 26.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
27. 27.🛟 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
28. 28.⚖️ 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) distance it travels (c) the same tape (d) how big we blow it
29. 29.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
30. 30.True or false: air from the balloon goes backward. (a) True (b) False
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a mirror (c) a balloon (d) a long string
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a drinking straw (d) turmeric powder
33. 33.🎈 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
34. 34.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ 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 string
36. 36.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
37. 37.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) air from the balloon (d) the balloon
38. 38.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
39. 39.🚀 Which of these goes backward? (a) the swimmer (b) air from the balloon (c) the rocket (d) the balloon
40. 40.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed

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