Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 457 · 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 backward. (a) False (b) True
2. 2.🔮 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
3. 3.True or false: the balloon goes backward. (a) True (b) False
4. 4.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
5. 5.True or false: the balloon goes forward. (a) False (b) True
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
7. 7.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) yeast (c) a mirror (d) a long string
8. 8.🚀 Which of these goes backward? (a) the rocket (b) gas from the rocket (c) the swimmer (d) the balloon
9. 9.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
10. 10.True or false: the swimmer goes forward. (a) True (b) False
11. 11.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
12. 12.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
14. 14.🛟 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
15. 15.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) chew them (d) give them to a baby
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) more friction, less far (c) less friction (d) it goes faster
17. 17.True or false: the rowing boat goes forward. (a) True (b) False
18. 18.📘 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
19. 19.True or false: the rowing boat goes backward. (a) True (b) False
20. 20.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
21. 21.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
22. 22.🎈 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
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) True (b) False
24. 24.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
25. 25.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
26. 26.⚖️ 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) the slope of the string (d) how big we blow it
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
28. 28.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
29. 29.⚖️ 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
30. 30.🚀 Which of these goes backward? (a) air from the balloon (b) the balloon (c) the swimmer (d) the rowing boat
31. 31.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) vinegar (c) a balloon (d) turmeric powder
32. 32.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
34. 34.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
35. 35.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
36. 36.⚖️ 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 string
37. 37.⚖️ 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) how big we blow it (c) distance it travels (d) the same straw
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) yeast (d) a balloon
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a balloon (d) a magnet

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