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Let's try and post the study guides from science and social studies upcoming tests here. If you know of a better way to attach a word document to a blog, please let me know!
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Ms. Whalen

Light and Eye Unit final on Friday, December 10th.
Know these definitions:
- Spectrum: colored light that makes up white light
- Lens: a transparent object that refracts and focuses light when it passes through it.
- Prism: a transparent object that is used to separate white light into the spectrum of colors.
- Refract: to bend
- Reflect: to bounce back
- Transparent: You can see clearly through it and light can pass through it. (A window, eye glass lens, glass, water.)
- Translucent: You can not see clearly through it, you can see shadows of objects. Light can pass through it. (Most colored glass or glass with a design, fluorescent light covers, some shades, gauzy curtains).
- Opaque: You can not see through it. No light can pass through it. (Person, car, tree, wall, desk, chair.)
- Plane mirror: a flat mirror
- Convex: curved outward- Larger view, used in stores to see around corners. Used in microscopes.
- Concave: curved inward- smaller view, objects appear upside down. Used in telescopes.

Know this information:
If you can see things clearly when they are near, but have some difficulty seeing things that are far away, you are nearsighted.
If you can see things clearly when they are far away, but have some difficulty seeing things that are near, you are farsighted.
- Light travels in a straight line.
- Light travels in waves
-When light hits an object it bounces off the object to show an image or reflection.
- Dark objects absorb more light than light colored objects. This is why dark clothing is hotter in the summer. It is collecting more energy from the light.
-The best object to reflect something would be a plane mirror. It creates an exact reflection, only backwards.
-Light is bending and slowed down when it is refracted.
-A transparent object, water or a lens is used to refract light.
-When light is blocked by an opaque object, a shadow of the object is formed.
-White light is made up of a spectrum of colors (all the colors of the rainbow).
- A prism or a drop of water can be used to break up white light into a spectrum.
- ROY G BIV- Red, orange, yellow, green, blue, indigo, and violet