September

Take the challenge


Microscope reveals invisible water critters

You’ll find lots of microorganisms living in water, even in the water you drink! As an experiment, go outside and find a patch of water near plants or inside a pond or water fountain. Take a small sample of each.

Using a microscope and a concave slide place a small sample from one source of water at a time and have a look through the microscope to see what you can find.

Be sure to set your microscope at the highest magnification to get a look at the tiny creatures. Be patient. If you can’t see anything, try a different water sample.

Look at how the creatures move. You can record their behaviors, draw them and check the Internet to help identify what you’re looking at.


Take a look back to 2015...

Future is blowing in the wind

Today everyone is looking for alternative energy sources, and along the California Delta companies are using wind to develop that energy. Wind energy is mainly used to generate electricity. Wind is a renewable energy source because the wind will blow as long as the sun shines. Wind is simply air in motion. The uneven heating of the earth’s surface via the sun creates wind currents. The earth’s surface is made of very different types of land and water, which each absorb the sun’s heat at different rates. Wind turbines collect the kinetic energy of the wind, which flows over the blades creating lift, causing them to turn. The blades turn a generator that creates electricity.

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