Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 810 · 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.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a long string (d) a balloon
2. 2.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a balloon rocket (d) a mirror
3. 3.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
4. 4.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
5. 5.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a battery cell (c) a magnet (d) a mirror
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) turmeric powder
7. 7.🔮 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
8. 8.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
9. 9.⚖️ 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 measure it (c) we change it
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
11. 11.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
12. 12.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) air from the balloon (d) the balloon
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
14. 14.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) water from the oars (d) the balloon
15. 15.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) sticky tape (d) a battery cell
17. 17.⚖️ 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) the same straw (c) the same string (d) how big we blow it
18. 18.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
19. 19.🛟 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
20. 20.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a long string (c) yeast (d) a balloon
22. 22.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) a long string
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a mirror (d) a drinking straw
25. 25.⚖️ 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 measure it (c) we keep it the same
26. 26.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
28. 28.🎈 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
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a long string (c) a balloon (d) a drinking straw
30. 30.🎈 When does the balloon rocket stop? (a) it never stops (b) when the air runs out (c) when it turns blue (d) when it gets cold
31. 31.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) put string round a neck (d) blow it till it bursts
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
33. 33.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) water a swimmer pushes (d) the balloon
34. 34.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same tape (c) distance it travels (d) the slope of the string
36. 36.True or false: air from the balloon goes backward. (a) True (b) False
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
38. 38.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) the string pulls it (d) a magnet pulls it
39. 39.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) a drinking straw (d) yeast
40. 40.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward

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