Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 941 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) yeast (d) a balloon
2. 2.⚖️ 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) the same tape (c) the same straw (d) distance it travels
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a magnet (d) a balloon
4. 4.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
6. 6.True or false: water a swimmer pushes goes backward. (a) True (b) False
7. 7.🚀 Which of these goes backward? (a) the balloon (b) water a swimmer pushes (c) the swimmer (d) the rowing boat
8. 8.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) a magnet (d) turmeric powder
10. 10.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
11. 11.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a drinking straw (c) vinegar (d) a magnet
12. 12.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
13. 13.⚖️ 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
14. 14.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rocket (d) water a swimmer pushes
15. 15.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
16. 16.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a balloon (c) a magnet (d) a long string
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
20. 20.🛟 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
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) a long string (d) sticky tape
22. 22.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
23. 23.⚖️ 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
24. 24.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
25. 25.⚖️ 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
26. 26.True or false: gas from the rocket goes forward. (a) True (b) False
27. 27.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
28. 28.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
29. 29.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a balloon rocket (d) a fridge magnet
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
31. 31.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) no change at all (d) it goes faster
32. 32.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
34. 34.⚖️ 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 slope of the string
35. 35.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
36. 36.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) water a swimmer pushes (d) the swimmer
37. 37.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the swimmer (d) the rowing boat
38. 38.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
39. 39.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it

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