Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 677 · 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: water a swimmer pushes goes forward. (a) True (b) False
2. 2.🔮 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
3. 3.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
4. 4.True or false: water from the oars goes backward. (a) False (b) True
5. 5.⚖️ 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
6. 6.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
7. 7.⚖️ 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 straw (c) how big we blow it (d) the slope of the string
8. 8.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
9. 9.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) air from the balloon
10. 10.⚖️ 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
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 string
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) two chairs (c) a drinking straw (d) a balloon
13. 13.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) chew them (c) throw them away safely (d) keep them in your mouth
14. 14.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
15. 15.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) water a swimmer pushes (d) the rowing boat
16. 16.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
17. 17.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) two chairs (c) a battery cell (d) turmeric powder
18. 18.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) vinegar (c) a drinking straw (d) two chairs
21. 21.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
22. 22.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
23. 23.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
24. 24.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
25. 25.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) vinegar (d) a magnet
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the swimmer (d) gas from the rocket
28. 28.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) two chairs (d) a magnet
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 keep it the same (b) we measure it (c) we change it
31. 31.True or false: the swimmer goes forward. (a) True (b) False
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) two chairs (d) a magnet
33. 33.True or false: the rowing boat goes backward. (a) True (b) False
34. 34.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
35. 35.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the rocket
36. 36.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
37. 37.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
38. 38.⚖️ 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 straw
39. 39.True or false: the balloon goes backward. (a) True (b) False
40. 40.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a mirror (d) a balloon rocket

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