Someone sent in a video asking about what an ocean current. Noelle explained it. Ocean currents are the movement of water in the ocean from one place to another.
Carly then explained how ocean currents were discovered. American astronomer, Matthew Fontaine Maury was the first person to discover the concept of ocean currents. While he was in the navy, he created a map hat expressed the idea of ocean currents. That was the first time ocean currents were brought to anyones attention.
Someone sends in a video asking how ocean currents affect living things. Noelle explains the process of upwelling, and that it helps organisms to gets the food and nutrients they need.
Noelle explains what causes different types of ocean currents. She says how surface currents are caused by wind. Then Carly explains how deep water currents are caused by temperature, salinity variations, etc.
After another person sent in a video asking about rip currents, both Noelle and Carly explained what a rip current was.
It ends with someone tweeting out their response to Noelle explaining what ocean currents are.