Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 668 · 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.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) yeast (d) two chairs
2. 2.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) sticky tape (d) vinegar
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a drinking straw (d) a magnet
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we keep it the same (c) we measure it
6. 6.🎈 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
7. 7.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it holds water (d) it blows air in
8. 8.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
9. 9.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
10. 10.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
11. 11.⚖️ 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 string
12. 12.True or false: the swimmer goes backward. (a) False (b) True
13. 13.True or false: a long string is needed for the balloon rocket. (a) True (b) False
14. 14.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) vinegar (c) a drinking straw (d) turmeric powder
15. 15.🚀 Which of these goes forward? (a) the rowing boat (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
16. 16.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
18. 18.⚖️ 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 measure it (c) we change it
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a battery cell (d) a balloon
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
21. 21.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rocket (d) the rowing boat
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the balloon (d) water a swimmer pushes
26. 26.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) gas from the rocket
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) two chairs (c) a drinking straw (d) a balloon
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
30. 30.🔮 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
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
32. 32.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
33. 33.True or false: air from the balloon goes backward. (a) False (b) True
34. 34.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
37. 37.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the rowing boat (d) air from the balloon
38. 38.🛟 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
39. 39.True or false: the rowing boat goes forward. (a) True (b) False
40. 40.True or false: water from the oars goes forward. (a) False (b) True

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