Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 724 · 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? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) water a swimmer pushes (d) the balloon
3. 3.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
4. 4.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
5. 5.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) sticky tape (d) turmeric powder
7. 7.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
8. 8.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
9. 9.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
10. 10.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a magnet (d) a drinking straw
12. 12.⚖️ 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 slope of the string
13. 13.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
14. 14.⚖️ 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) distance it travels (c) how big we blow it (d) the slope of the string
15. 15.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
16. 16.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a fridge magnet (d) a sundial
17. 17.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
22. 22.🛟 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
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) backward (d) forward
24. 24.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: a long string is needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the same tape (d) how big we blow it
27. 27.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
28. 28.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
29. 29.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
30. 30.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the swimmer (d) gas from the rocket
31. 31.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
33. 33.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) keep them in your mouth (d) give them to a baby
34. 34.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) two chairs (d) sticky tape
36. 36.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) two chairs (d) a mirror
38. 38.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) yeast (c) sticky tape (d) a mirror
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) how big we blow it (c) distance it travels
40. 40.⚖️ 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

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