Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 221 · 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.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) distance it travels (c) the same tape (d) how big we blow it
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
4. 4.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the balloon (d) the rowing boat
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False
6. 6.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a mirror (c) a fridge magnet (d) a sundial
7. 7.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: yeast is needed for the balloon rocket. (a) False (b) True
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a battery cell (c) sticky tape (d) two chairs
10. 10.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a mirror (d) two chairs
12. 12.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🔮 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
16. 16.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
17. 17.🚀 Which of these goes forward? (a) water from the oars (b) the balloon (c) air from the balloon (d) water a swimmer pushes
18. 18.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
19. 19.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
20. 20.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
21. 21.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
22. 22.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a mirror (d) two chairs
24. 24.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) vinegar (c) a magnet (d) a balloon
26. 26.🚀 Which of these goes forward? (a) the rowing boat (b) air from the balloon (c) gas from the rocket (d) water from the oars
27. 27.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
28. 28.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
29. 29.🛟 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
30. 30.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
31. 31.⚖️ 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) the slope of the string (c) distance it travels
32. 32.⚖️ 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) how big we blow it (c) the same straw (d) distance it travels
33. 33.True or false: the rocket goes forward. (a) False (b) True
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) the same straw (c) distance it travels
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a long string (d) vinegar
36. 36.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) yeast (c) a drinking straw (d) a balloon
38. 38.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
39. 39.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
40. 40.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther

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