El Niño What is El Niño? How does it form? What is the difference between El Niño and La Niña? Which one produces heavy rain for the Western U.S.? Understand the science behind El Niño with this Weather Underground infographic.
Activities: Make a Wind Vane SCI.2.2.1 2010 Construct and use tools to observe and measure weather phenomena like precipitation, changes in temperature, wind speed and direction. SCI.2.2.2 2010 Experience and describe wind as the motion of the air.