A line, real or imaginary, around which something spins is______________________

An instrument that shows direction and uses a small magnet to show North is______________

A dark area caused when an object blocks light falling on a surface is_________________

An instrument that measures the time of day using the position of the Sun is__________________________

Day: Earth faces the Sun and is lighted

Night: Earth faces away from the Sun and is dark

The pocket of air that surrounds the Earth_____________________

The solid rock that makes up the outer layer of Earth is___________________________

The layer of hot flowing rocks beneath the Earth's crust is__________________________________

The center of the Earth is________________________