August

Take the Challenge...


How many colors can you see in a rainbow?

You probably won’t find a pot of gold at the end of a rainbow, but you will find every color visible to the human eye. You’ll need a sunny day for this experiment. Fill a non-plastic drinking glass or jar about three quarters of the way full with water. Go outside in the sunlight. Hold the glass of water above a piece of white paper and watch as sunlight passes through the glass of water, refracts or bends and forms a rainbow of colors on your sheet of paper.

You can hold the glass at different angles and heights to see if it has a different effect. Record your findings. Be sure to include the colors you see, the height and angle of the glass from the paper, and draw a picture of the reflection.



Take a look back to 2015...

Before gold, came the fur rush

By 1825 trappers were coming from all over the world to hunt for furs. The most popular furs were otters and seals; the Delta held a huge supply of both. When the otters became a rare find, trappers turned to beavers, foxes, weasels and even grizzly bears. The California Fur rush was a leading factor in bringing world trade to the West coast. Jedediah Smith, an explorer and fur trader, was the first white american to explore much of California. he traveled twice through the Delta region between 1825 and 1827, trapping and mapping the region. no one else had seen so much of California. by 1849, trappers drove much of the Delta’s otter population into near extension before moving on to other locations.

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