Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 892 · 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 “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
3. 3.🔮 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
4. 4.⚖️ 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) False (b) True
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
6. 6.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) backward (d) it stays still
7. 7.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the rocket (d) the swimmer
8. 8.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the rocket (d) the swimmer
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the same string (c) distance it travels (d) how big we blow it
10. 10.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a mirror (c) yeast (d) a balloon
11. 11.⚖️ 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
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) turmeric powder (d) sticky tape
13. 13.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) more friction, less far (d) it goes faster
14. 14.True or false: the rocket goes backward. (a) True (b) False
15. 15.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a mirror (d) a fridge magnet
16. 16.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
17. 17.True or false: the rocket goes forward. (a) False (b) True
18. 18.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) vinegar (d) a mirror
19. 19.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
21. 21.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
22. 22.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
23. 23.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
24. 24.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a mirror (c) a long string (d) sticky tape
25. 25.⚖️ 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) distance it travels (c) how big we blow it (d) the same straw
26. 26.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a balloon (d) a drinking straw
28. 28.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) water a swimmer pushes (d) the rowing boat
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
30. 30.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the rocket
31. 31.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
32. 32.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) it never stops (d) when it gets cold
33. 33.True or false: a long string is needed for the balloon rocket. (a) False (b) True
34. 34.True or false: water a swimmer pushes goes forward. (a) False (b) True
35. 35.⚖️ 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
36. 36.True or false: gas from the rocket goes forward. (a) True (b) False
37. 37.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
38. 38.🎈 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
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
40. 40.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it turns into a kite (c) it gets too heavy (d) it can pop loudly

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