Week 18 - The Science of Eyesight

What is one of the most important ways that humans learn about their world?

• Through their sense of smell

• Through their sense of taste

• Through their sense of sight

• Through their sense of touch

Which type of electromagnetic wave has the most energy?

• Radio Waves

• Microwaves

• Gamma Rays

• Infrared

Which type of electromagnetic wave has the least energy?

• Radio Waves

• Microwaves

• Gamma Rays

• Infrared

Which type of electromagnetic wave do humans use to see?

• Visible

• Microwaves

• Gamma

• Infrared

Which part of the eye is responsible for carrying light signals to the brain?

• Cornea

• Iris

• Retina

• Optic Nerve

What is the main characteristic of opaque materials?

• They allow all light to pass through

• They allow some light to pass through

• They do not allow any light to pass through

• They reflect all light

Which term best describes an umbrella?

• Opaque

• Radiant

• Translucent

• Transparent

What is the term for materials that allow light to pass through them completely?

• Opaque

• Translucent

• Transparent

• Reflective

Which term best describes a window?

• Opaque

• Radiant

• Translucent

• Transparent

What happens to a person’s vision if the cornea becomes cloudy?

• They can see in the dark

• Their vision becomes blurry

• Their vision becomes dimmer

• They see only in black and white