Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 816 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
2. 2.⚖️ 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) the same string (d) the same straw
3. 3.⚖️ 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) distance it travels (c) the same straw
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) distance it travels (d) the same string
5. 5.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) yeast (c) a magnet (d) turmeric powder
6. 6.True or false: water from the oars goes backward. (a) False (b) True
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
10. 10.🎈 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
11. 11.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a sundial (d) a fridge magnet
14. 14.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) two chairs (c) a long string (d) turmeric powder
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a magnet (d) sticky tape
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) sticky tape (d) vinegar
18. 18.True or false: water a swimmer pushes goes backward. (a) False (b) True
19. 19.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
20. 20.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
21. 21.True or false: the balloon goes forward. (a) True (b) False
22. 22.True or false: the rowing boat goes backward. (a) True (b) False
23. 23.True or false: the rocket goes backward. (a) False (b) True
24. 24.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
25. 25.⚖️ 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
26. 26.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) water from the oars (d) water a swimmer pushes
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a long string (c) sticky tape (d) a balloon
29. 29.True or false: gas from the rocket goes backward. (a) True (b) False
30. 30.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a drinking straw (d) a battery cell
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
35. 35.⚖️ 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
36. 36.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) chew them (c) give them to a baby (d) throw them away safely
37. 37.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the straw is heavy (d) the string pulls it
38. 38.True or false: a mirror is not needed for the balloon rocket. (a) True (b) False
39. 39.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) air from the balloon (d) the rocket
40. 40.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it can pop loudly (d) it turns into a kite

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