Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 420 · 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.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
2. 2.True or false: the rocket goes forward. (a) False (b) True
3. 3.True or false: air from the balloon goes backward. (a) False (b) True
4. 4.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.🛟 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
7. 7.⚖️ 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) distance it travels (d) the same tape
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
11. 11.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
12. 12.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a long string (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 measure it (b) we change it (c) we keep it the same
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) two chairs (d) turmeric powder
17. 17.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a long string (c) a balloon (d) sticky tape
18. 18.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a long string (d) vinegar
19. 19.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
20. 20.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) no change at all (c) less friction (d) it goes faster
21. 21.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) vinegar (c) turmeric powder (d) yeast
22. 22.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
23. 23.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) blow it till it bursts (c) aim it at your friend (d) put string round a neck
24. 24.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) two chairs (d) a mirror
26. 26.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
31. 31.True or false: the swimmer goes backward. (a) True (b) False
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) a balloon (d) two chairs
33. 33.🚀 Which of these goes forward? (a) gas from the rocket (b) the balloon (c) air from the balloon (d) water from the oars
34. 34.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
35. 35.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
36. 36.🚀 Which of these goes backward? (a) the balloon (b) the swimmer (c) water a swimmer pushes (d) the rocket
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🚀 Which of these goes backward? (a) the rowing boat (b) water from the oars (c) the balloon (d) the rocket
40. 40.🚀 Which of these goes forward? (a) water from the oars (b) the rowing boat (c) water a swimmer pushes (d) gas from the rocket

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