Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 646 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it flies off the string (d) it goes much farther
2. 2.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
3. 3.⚖️ 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
4. 4.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
5. 5.True or false: air from the balloon goes forward. (a) True (b) False
6. 6.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
7. 7.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a drinking straw (c) a balloon (d) a long string
8. 8.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a battery cell (d) a long string
9. 9.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
10. 10.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
11. 11.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it gets too heavy (c) it changes colour (d) it turns into a kite
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) a balloon (c) two chairs (d) sticky tape
13. 13.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) turmeric powder (d) a drinking straw
14. 14.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) vinegar (d) a mirror
15. 15.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it guides the balloon (c) it blows air in (d) it holds water
16. 16.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
17. 17.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the same straw (c) the slope of the string (d) distance it travels
19. 19.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) it stays still (d) forward
20. 20.🚀 Which of these goes forward? (a) the rocket (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
21. 21.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
22. 22.True or false: the rocket goes backward. (a) True (b) False
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
24. 24.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the rowing boat
25. 25.⚖️ 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
26. 26.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) when it gets cold (d) it never stops
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same tape (b) how big we blow it (c) distance it travels
28. 28.🛟 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
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) a drinking straw (d) a long string
32. 32.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
33. 33.True or false: water from the oars goes forward. (a) False (b) True
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) a battery cell (d) a balloon
35. 35.True or false: water from the oars goes backward. (a) True (b) False
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) yeast (d) a long string
38. 38.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a long string (d) sticky tape

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