learning new words about earth structure and inner objects

How does a combination of 2 last layers called?

Do you remember during which years the deepest drill was conducted?

Which similar word does an earth have in its structure as a bread does?

Which animal can dug itself up the deepest?

What is the distance that earth mantle moves around per year? approx. answer

Which country dug a deepest hole in the ground?

Do you remember any book/film about underground worlds of earth?

Helps with understanfing of what is happening underground

3 Minutes To The Center of The Earth

3-minutes-to-the-center-of-the-earth

Let's do English ESL general vocabulary practice. learning new words about earth structure and inner objects