Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 981 · 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) a balloon (b) a long string (c) sticky tape (d) a battery cell
2. 2.⚖️ 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
3. 3.⚖️ 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) distance it travels (c) the slope of the string
4. 4.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) the same straw (d) the same tape
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) two chairs (c) a balloon (d) sticky tape
7. 7.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
8. 8.⚖️ 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
9. 9.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
10. 10.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
11. 11.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
12. 12.True or false: gas from the rocket goes forward. (a) False (b) True
13. 13.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
14. 14.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
15. 15.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) turmeric powder (d) two chairs
17. 17.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
18. 18.True or false: the swimmer goes backward. (a) True (b) False
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
20. 20.⚖️ 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) how big we blow it (c) the same tape (d) the same string
21. 21.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
23. 23.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
24. 24.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
25. 25.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
26. 26.True or false: turmeric powder is not needed for the balloon rocket. (a) False (b) True
27. 27.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) vinegar (d) sticky tape
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
33. 33.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
34. 34.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) yeast (d) two chairs
35. 35.True or false: gas from the rocket goes backward. (a) True (b) False
36. 36.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
37. 37.True or false: the rowing boat goes forward. (a) False (b) True
38. 38.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the swimmer
39. 39.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) turmeric powder (c) a balloon (d) a long string

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