Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 753 · 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.⚖️ 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) distance it travels
2. 2.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
3. 3.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) sticky tape (d) a battery cell
4. 4.🔮 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
5. 5.⚖️ 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
6. 6.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it turns into a kite (d) it can pop loudly
9. 9.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it gets cold (c) when it turns blue (d) it never stops
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a balloon (d) vinegar
11. 11.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) the rowing boat (d) gas from the rocket
12. 12.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
13. 13.🛟 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
14. 14.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) throw them away safely (d) keep them in your mouth
15. 15.⚖️ 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) how big we blow it (d) distance it travels
16. 16.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
17. 17.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
18. 18.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) a mirror (d) a battery cell
19. 19.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
20. 20.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
21. 21.⚖️ 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
22. 22.True or false: water from the oars goes forward. (a) False (b) True
23. 23.True or false: water a swimmer pushes goes backward. (a) False (b) True
24. 24.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) water from the oars
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a balloon (d) turmeric powder
26. 26.True or false: the swimmer goes backward. (a) True (b) False
27. 27.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) water from the oars (d) the swimmer
28. 28.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
29. 29.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) two chairs (d) a long string
31. 31.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) air from the balloon
32. 32.📘 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
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) a magnet
35. 35.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
36. 36.⚖️ 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
37. 37.True or false: gas from the rocket goes forward. (a) True (b) False
38. 38.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
39. 39.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) a mirror (d) yeast
40. 40.True or false: the rowing boat goes backward. (a) False (b) True

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