Department of the Environment visit

On Monday, we had a visit from Amy who works for San Francisco's Department of the Environment. Students will be bringing home a letter from them either today or tomorrow. It's a great program and helps to reinforce the standards for science that we are currently studying, namely:

Earth Sciences
3. Water on Earth moves between the oceans and land through the processes of evaporation and condensation. As a basis for understanding this concept:
a. Students know most of Earth's water is present as salt water in the oceans, which cover most of Earth's surface.
b. Students know when liquid water evaporates, it turns into water vapor in the air and can reappear as a liquid when cooled or as a solid if cooled below the freezing point of water.
c. Students know water vapor in the air moves from one place to another and can form fog or clouds, which are tiny droplets of water or ice, and can fall to Earth as rain, hail, sleet, or snow.
d. Students know that the amount of fresh water located in rivers, lakes, under-ground sources, and glaciers is limited and that its availability can be extended by recycling and decreasing the use of water.
e. Students know the origin of the water used by their local communities.

Their letter shares some excellent information that I hope you find useful. You may also information on their website: www.sfenvironment.com.