Shadows & Light
Helpful Sites:
Study Jams LIGHT Video
Study Jams Light Absorption, Reflection and Refraction Video
Light Refraction Demonstration
On-Line Shadow Demonstration
Daytime Shadow Demonstration
Study Jams LIGHT Video
Study Jams Light Absorption, Reflection and Refraction Video
Light Refraction Demonstration
On-Line Shadow Demonstration
Daytime Shadow Demonstration
Light is...
Read this information and copy down orange words/definitions in Science journal:
Light travels at 186,000 miles per second. That makes it the fastest thing in the universe. It is almost a million times faster than sound which is why we see lightning before we hear the thunder that comes with it. It takes the Sun's light about eight minutes to reach earth. Light travels in straight lines called light rays. Light continues to travel in straight lines until it hits other objects. When light hits something, what happens to light depends on the object.
Light can be...
Source: http://www.teacherweb.com/FL/RKBBHK8/Calabresi/apt2.aspx
Light travels at 186,000 miles per second. That makes it the fastest thing in the universe. It is almost a million times faster than sound which is why we see lightning before we hear the thunder that comes with it. It takes the Sun's light about eight minutes to reach earth. Light travels in straight lines called light rays. Light continues to travel in straight lines until it hits other objects. When light hits something, what happens to light depends on the object.
- Opaque objects block light making a shadow. An example would be a book, a wall, a person, heavy paper, etc.
- Translucent objects allow some light to pass through. An example would be wax or parchment paper.
- Transparent objects allow all the light to pass through in straight lines. An example would be clear glass windows.
Light can be...
- Absorbed. A light ray can be absorbed (consumed, "eating up", not reflected) by an object. It then changes to heat energy. Dark colors absorb more light rays than light colors.
- Reflected. When a light ray hits an object and bounces off, it is called reflection. Mirrors are a good example of objects that reflect light. Because mirrors reflect all of the light wavelengths, you can see yourself
- Refracted. When a light ray bends, it is called refraction. Refraction is the change in direction of a wave due to a change in its speed. This happens most often when a ray of light passes from one medium to another, such as air to water, or sunlight through a prism.
Source: http://www.teacherweb.com/FL/RKBBHK8/Calabresi/apt2.aspx