Planetary Astronomer Mike answers some common questions about Earth. These really are common questions that are frequently answered incorrectly.
Why does Earth experience seasons? - hint: it's not Earth's distance from the Sun.Go here for the answers to these questions.
Why is there a 24 hour day-night cycle? - duh
Why is the sky blue? - reflection? wrong; refraction? ...sort of but not quite
Why are sunsets red? - see answer to why is the sky blue.
How does Earth compare to other planets in our solar system? - again, duh.
Why does a feather fall slower than a bowling ball? - hint: physics