Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 612 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) sticky tape (d) turmeric powder
2. 2.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
3. 3.🎈 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
4. 4.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
5. 5.True or false: the swimmer goes forward. (a) False (b) True
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it goes much farther (d) it flies off the string
7. 7.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
8. 8.🔮 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
9. 9.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the slope of the string (d) the same string
11. 11.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
13. 13.True or false: the rocket goes backward. (a) True (b) False
14. 14.⚖️ 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
15. 15.⚖️ 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
16. 16.⚖️ 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 change it (c) we measure it
17. 17.🔮 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
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) distance it travels (b) the same string (c) how big we blow it (d) the same tape
20. 20.True or false: gas from the rocket goes backward. (a) True (b) False
21. 21.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) give them to a baby (d) keep them in your mouth
22. 22.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
23. 23.🚀 Which of these goes backward? (a) the swimmer (b) the rowing boat (c) the balloon (d) gas from the rocket
24. 24.True or false: the rowing boat goes backward. (a) False (b) True
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) yeast
26. 26.⚖️ 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
27. 27.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
28. 28.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a balloon (c) turmeric powder (d) a magnet
29. 29.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a long string (c) vinegar (d) yeast
30. 30.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) vinegar (c) a long string (d) sticky tape
31. 31.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
32. 32.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) a drinking straw (d) a mirror
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a battery cell (d) a drinking straw
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same straw (c) distance it travels
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) two chairs (d) a drinking straw
39. 39.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) a mirror (d) yeast
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False

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