natural vs artificial light.pdf

Name: ________________________ 10 Curriculum Connection C2.1 What is Light? Light is a type of energy that allows us to see the world around us. Without it, many of us would live in fear, because it is human nature to need light. That is why many children and even adults are afraid of the dark. Ligh...

Name: ________________________ 10 Curriculum Connection C2.1 What is Light? Light is a type of energy that allows us to see the world around us. Without it, many of us would live in fear, because it is human nature to need light. That is why many children and even adults are afraid of the dark. Light comes from many different light sources, but we can categorize them into natural light sources and artificial light sources. What Are Natural Light Sources? Natural light sources are sources of light energy that come from our environment and are not man-made. The sun, stars, and fireflies are all examples of natural light sources because they occur naturally in our environment and we do not produce them. The sun provides us with the most light energy of anything in the world. The sun is a nuclear fireball spewing light energy in all directions. Even the light from the moon is actually just the sun’s light reflecting off the moon. The moon is not a natural light source because it isn’t a light source at all. Artificial Light Sources An artificial light source is any source of light that is created by humans. It is artificial because it does not occur naturally in our environment, therefore, it is human-made light. Examples of artificial lights include: candles, fireworks, and light-bulbs. Imagine living without artificial light. Having no light after the sun sets would be terrifying for many people and would also lower the functionality of our society. We rely on artificial light after dark in our businesses, at home, and on our streets. Having the ability to change the lighting around us has led to a much higher quality of life. © Super Simple Sheets