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These are the Texas Essential Knowledge and Skills (TEKS). Each line describes what students are expected to know and be able to do by the time they take the STAAR assessment. I have bolded the skill portion of each student expectation to highlight what students must demonstrate.
Light
Light
Reflection
Reflection
Reflection looks like the bouncing back of light, it is what allows us to see our reflection.
Refraction
Refraction
Refraction will always GO THROUGH an object. Refraction can make objects look broken, look bigger or smaller, or appear to be in a different location than they actually are.
Absorption
Absorption
Absorb means to take in light, just like how a sponge absorbs water. Light is a form of energy. When a material absorbs light, the energy is transferred to the particles that make up the material, causing them to vibrate faster. The energy is transformed to kinetic energy of the particles, causing the material to become slightly warmer.
As the light passes through the eyeglasses, the light is refracted as it goes through the glasses because they are clear.
As the light passes through the sunglasses, the light is absorbed because they are a dark color.
Practice
Practice
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