Apple Cash (which now comes with virtual card numbers) and Apple Pay are Apple’s digital payment services. See how the Apple Cash digital card compares with the Apple Pay digital service. Many, or all ...

Solids, liquids and gases are called the three states of matter. Liquids can flow or be poured easily. They are not easy to hold. Liquids change their shape depending on the container they are in.

An unusually well-preserved fossil suggests that the feathered Archaeopteryx probably flew like a chicken. By The Learning Network Show us — in words or images, audio or video — how this technology is ...