1. The earth is more complex than just the crust, mantle and core!
2. To the earth’s core!
3. How do we know how the internal structure of the earth looks like?
Scientists study the path of seismic waves! When waves pass through materials of different density, it will bend. As it bends, the waves will reach the seismograph (the machine that records wave movements) at different times.
Watch the video if you want to know more!