Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 186 · 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.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a long string (c) a balloon (d) a battery cell
2. 2.🎈 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
3. 3.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) chew them (d) throw them away safely
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.🔮 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
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.🚀 Which of these goes forward? (a) gas from the rocket (b) the rowing boat (c) air from the balloon (d) water from the oars
9. 9.🧺 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) a mirror
10. 10.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) turmeric powder (d) a drinking straw
11. 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
12. 12.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
13. 13.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a drinking straw (c) sticky tape (d) a long string
14. 14.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a mirror (d) a fridge magnet
15. 15.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a drinking straw (c) a long string (d) a magnet
17. 17.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) aim it at your friend (d) keep it away from faces
18. 18.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a balloon (d) vinegar
20. 20.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
21. 21.⚖️ 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
22. 22.True or false: the rocket goes backward. (a) True (b) False
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) yeast (d) a magnet
24. 24.⚖️ 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
25. 25.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) a mirror (d) sticky tape
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
28. 28.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
29. 29.True or false: water from the oars goes backward. (a) True (b) False
30. 30.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
31. 31.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
32. 32.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
33. 33.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
34. 34.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
35. 35.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the slope of the string (c) distance it travels (d) how big we blow it
37. 37.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
38. 38.True or false: water a swimmer pushes goes forward. (a) True (b) False
39. 39.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
40. 40.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the rocket (d) water from the oars

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