Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 839 · 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.⚖️ 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
2. 2.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a balloon (d) a mirror
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it flies off the string (c) it goes less far (d) it goes much farther
4. 4.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) no change at all (c) more friction, less far (d) less friction
5. 5.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
6. 6.True or false: water a swimmer pushes goes forward. (a) True (b) False
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) a mirror
8. 8.True or false: a long string is needed for the balloon rocket. (a) False (b) True
9. 9.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
10. 10.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it can pop loudly (d) it gets too heavy
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a drinking straw (c) a long string (d) a balloon
12. 12.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a mirror (c) turmeric powder (d) a balloon
13. 13.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) the same string (d) the same straw
15. 15.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
16. 16.📘 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
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a drinking straw (d) turmeric powder
18. 18.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) water a swimmer pushes
19. 19.🚀 Which of these goes backward? (a) water from the oars (b) the balloon (c) the rowing boat (d) the rocket
20. 20.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) yeast (d) sticky tape
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water a swimmer pushes (d) the rowing boat
26. 26.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
27. 27.True or false: turmeric powder 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 blows air in (c) it holds water (d) it guides the balloon
29. 29.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
30. 30.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) air from the balloon (d) the swimmer
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) the same tape (c) distance it travels (d) how big we blow it
33. 33.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
35. 35.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) sticky tape (c) a long string (d) a battery cell
37. 37.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
38. 38.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
39. 39.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) keep it away from faces (d) put string round a neck
40. 40.True or false: gas from the rocket goes forward. (a) True (b) False

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