Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 868 · 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.True or false: the swimmer goes forward. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) True (b) False
3. 3.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) blow it till it bursts (d) aim it at your friend
4. 4.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
5. 5.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) yeast (d) a long string
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) two chairs (d) vinegar
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
9. 9.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
10. 10.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same tape
12. 12.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
13. 13.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) sticky tape (c) a magnet (d) yeast
15. 15.⚖️ 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
16. 16.🛟 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
17. 17.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a balloon (c) a long string (d) two chairs
19. 19.⚖️ 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) how big we blow it (c) the same straw (d) the slope of the string
20. 20.🔮 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
21. 21.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) sticky tape (c) two chairs (d) a mirror
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a magnet (d) a long string
24. 24.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
25. 25.True or false: water from the oars goes forward. (a) True (b) False
26. 26.⚖️ 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
27. 27.True or false: air from the balloon goes backward. (a) False (b) True
28. 28.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) water from the oars (d) the swimmer
29. 29.🚀 Which of these goes forward? (a) air from the balloon (b) the balloon (c) water from the oars (d) water a swimmer pushes
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) how big we blow it (c) distance it travels
31. 31.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
32. 32.🎈 When does the balloon rocket stop? (a) it never stops (b) when it turns blue (c) when the air runs out (d) when it gets cold
33. 33.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the slope of the string (c) how big we blow it
35. 35.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) water a swimmer pushes (d) the balloon
36. 36.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
37. 37.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) straight down (d) it stays still
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) a drinking straw
39. 39.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a drinking straw (d) yeast

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