1
Ocean currents — the continuous, directed movement of ocean water — affect regional climates and alter the biological and chemical characteristics of seawater. Currents can flow for long distances both at and below the ocean’s surface. Wind drives surface currents, whereas density often drives...
Grade Level   6 7 8
Classroom Activities Curricula and Instruction
Save to List
2
Is the ozone hole getting smaller? How much rain is in the cloud of a hurricane? How much sea ice is melting in the Arctic? For over 50 years, NASA scientists have been asking questions and collecting data from space-based satellites to study Earth's changing environment. Engineers and scientists...
Grade Level   6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
Save to List