Light and Color: Using Light’s Energy
Clip: Special | 1m 4sVideo has Closed Captions
How do plants use sunlight to make their own food?
We use light for more than just to see. We can use light’s energy to make electricity, clean water, even dry our clothes. Plants use sunlight to make food.
Science Trek is a local public television program presented by IdahoPTV
Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by the Friends of Idaho Public Television and the Corporation for Public Broadcasting.
Light and Color: Using Light’s Energy
Clip: Special | 1m 4sVideo has Closed Captions
We use light for more than just to see. We can use light’s energy to make electricity, clean water, even dry our clothes. Plants use sunlight to make food.
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Science Trek
Science Trek is a place where parents, kids, and educators can watch short, educational videos on a variety of science topics. Every Monday Science Trek releases a new video that introduces children to math, science, technology, engineering, and math (STEM) career potentials in a fun, informative way.(Science Trek music) JOAN CARTAN-HANSEN, HOST: Light may have many colors but more importantly, Light has energy.
And we use that energy in different ways.
We use light waves to generate electricity.
Solar panels are made of small PV or photovoltaic cells or a similar technology.
When sunlight hits these cells, the energy in the light waves creates electrical changes in the PV cells.
And that causes electricity to flow into the power grid or into a battery.
Solar energy can be used to heat water.
We can even use sunlight to dry our clothes.
It saves you money and reduces our carbon footprint.
Plants use sunlight's energy too.
It is a process called photosynthesis.
Inside plant cells are pigments called chlorophyll.
Plants use chlorophyll to convert sunlight, water, and carbon dioxide into food.
In the process, plants release oxygen back into the air for the rest of us to breathe.
We all need light's energy to grow and thrive.
For more information about light and color, check out the Science Trek website.
You'll find it at Science Trek dot org.
Light and Color: Mirror, Mirror on the Wall
Video has Closed Captions
Funhouse mirrors help us learn about light and reflection. (1m 4s)
Join hosts Evie and Garrett as they learn more about light and color! (6m 11s)
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Science Trek is a local public television program presented by IdahoPTV
Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by the Friends of Idaho Public Television and the Corporation for Public Broadcasting.