Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 172 · 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 not needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a balloon (d) sticky tape
2. 2.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the same tape (c) how big we blow it (d) distance it travels
4. 4.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it blows air in (d) it makes it heavier
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
6. 6.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
7. 7.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) gas from the rocket (d) the balloon
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) two chairs (d) turmeric powder
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) two chairs (d) a long string
10. 10.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
11. 11.🔮 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
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) vinegar
13. 13.True or false: water from the oars goes backward. (a) True (b) False
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) a mirror (d) a magnet
16. 16.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
17. 17.⚖️ 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 change it (c) we measure it
18. 18.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the swimmer (d) the balloon
19. 19.🎈 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
20. 20.⚖️ 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 measure it (c) we change it
21. 21.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
22. 22.True or false: yeast is not needed for the balloon rocket. (a) False (b) True
23. 23.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
25. 25.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) chew them (c) give them to a baby (d) keep them in your mouth
26. 26.⚖️ 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
27. 27.🚀 Which of these goes backward? (a) the rocket (b) water from the oars (c) the swimmer (d) the balloon
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) turmeric powder (d) a balloon
30. 30.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
31. 31.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
33. 33.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) put string round a neck (d) aim it at your friend
34. 34.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
35. 35.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
36. 36.True or false: the rocket goes forward. (a) False (b) True
37. 37.True or false: the balloon goes forward. (a) True (b) False
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) air from the balloon (d) the swimmer
40. 40.True or false: water a swimmer pushes goes backward. (a) False (b) True

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