What is light?

Name three things happens to light when its hit to a surface?

How does light travel?

What is an similarity of an electromagnetic wave and a sound wave?

What is an difference of an electromagnetic wave and a sound wave?

What is refraction?

How do you see a tree or any other object?

Does light travel the same in every object?

What is a refractive index?

What is the speed of light (km/s) through a diamond?

What is the speed of light(km/s) through air?

What happens to light as the refractive index becomes higher?

Is a star luminous or non-luminous?

Is Venus the planet luminous or non-luminous?

Is a basketball transparent, translucent or opaque?

Is air transparent, translucent or opaque?

What is the refractive index for water?

What is the refractive index for ice?