Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 497 · 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 from the oars goes forward. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
3. 3.⚖️ 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) True (b) False
4. 4.🔮 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
5. 5.True or false: water a swimmer pushes goes backward. (a) False (b) True
6. 6.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
7. 7.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
9. 9.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
11. 11.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
12. 12.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when the air runs out (c) it never stops (d) when it turns blue
13. 13.True or false: the swimmer goes backward. (a) False (b) True
14. 14.True or false: air from the balloon goes backward. (a) True (b) False
15. 15.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
16. 16.True or false: the rowing boat goes backward. (a) True (b) False
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
18. 18.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) backward (c) straight down (d) forward
19. 19.⚖️ 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
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a battery cell (c) a balloon (d) sticky tape
21. 21.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the rocket (d) gas from the rocket
22. 22.⚖️ 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 change it (c) we keep it the same
23. 23.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
24. 24.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it makes it heavier (d) it holds water
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) a drinking straw (d) a mirror
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
27. 27.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
28. 28.⚖️ 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 same tape
29. 29.True or false: water from the oars goes backward. (a) True (b) False
30. 30.⚖️ 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 tape (c) the slope of the string (d) how big we blow it
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
32. 32.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) a balloon (d) a drinking straw
34. 34.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
35. 35.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
36. 36.True or false: the rocket goes forward. (a) False (b) True
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
39. 39.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) the swimmer (d) water from the oars
40. 40.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward

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