Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 671 · 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.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) it goes faster (d) no change at all
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) a magnet (d) sticky tape
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same string (b) distance it travels (c) how big we blow it
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) sticky tape (d) yeast
6. 6.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
7. 7.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
8. 8.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
9. 9.True or false: yeast is needed for the balloon rocket. (a) False (b) True
10. 10.True or false: air from the balloon goes forward. (a) True (b) False
11. 11.🚀 Which of these goes forward? (a) water a swimmer pushes (b) gas from the rocket (c) the swimmer (d) air from the balloon
12. 12.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
13. 13.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
14. 14.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
16. 16.True or false: gas from the rocket goes forward. (a) True (b) False
17. 17.True or false: the swimmer goes forward. (a) True (b) False
18. 18.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
19. 19.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a long string (d) a battery cell
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
22. 22.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
23. 23.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a battery cell (c) sticky tape (d) vinegar
24. 24.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
25. 25.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) aim it at your friend (c) blow it till it bursts (d) keep it away from faces
26. 26.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
27. 27.True or false: gas from the rocket goes backward. (a) False (b) True
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) vinegar (b) two chairs (c) a drinking straw (d) a balloon
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a battery cell (d) a long string
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
33. 33.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
34. 34.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) two chairs (c) a battery cell (d) a mirror
35. 35.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) backward (d) straight down
36. 36.🚀 Which of these goes backward? (a) the balloon (b) air from the balloon (c) the rocket (d) the swimmer
37. 37.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
38. 38.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it

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