Vocabulary 1
What does judge mean?
when you form an opinion about something
Patrick was able to ________ that he was about two inches shorter than his brother.
judge
What is a pupil?
The black spot in the middle of the iris.
Name an object that is luminous.
sun, lamps, fires, televisions, flashlights, etc.
Identify two animals that have eyes on the front of their head.
Foxes and Lions
What are the two types of lenses?
Concave and Convex Lenses
What does reflect mean?
when light bounces back without passing through the surface
At the aquarium, Sara could see the sea turtle clearly through the _________ glass.
transparent
Look at the diagram on page 110. What do you notice about the image being transmitted by the optic nerve?
The image is upside down.
Name an object that is transparent.
air, water, glass, windows, etc.
Identify two animals that have eyes on the sides of their heads.
Rabbits and Horses
What happens when someone is nearsighted?
They can see things that are close clearly, but things farther away look blurry.
What does transparent mean?
an object that you can see through
A lighthouse _________ the water to guide approaching boats at night.
illuminates
What are our five senses?
sight, smell, touch, hearing, and taste
What does opaque mean?
objects that do not let light through
What is the downside for animals who have one eye on each side of their head?
The two eyes work separately.
What happens when someone is farsighted?
They can see things that are far away clearly, but things up close look blurry.
What does illuminates mean?
something that gives off light and makes the area around it brighter
The __________ glow from the flashlight allowed me to read while we were camping.
luminous
What happens to your pupil when a bright light is shined in your eye?
The pupil becomes smaller.
What are some objects in your classroom that reflect light?
a mirror, water bottle, glossy book cover, and other shiny surfaces
How does having eyes in front help predators hunt their prey?
Predators need to be able to judge distances and the speed of their prey.
Why do people need glasses?
When a person's lens does not refract light onto the retina properly.
What does the word luminous mean?
As the sun went down, the surface of the lake was able to _______ the colors of the sunset.
reflect
What sends messages about what your eyes see to your brain?
The retina.
What creates a shadow?
A shadow results when a solid object blocks light from passing through it.
Why is it important for animals to be able to see at night?
Many animals sleep during the day and move around and hunt at night. Unlike humans, animals have no way to produce artificial light.
Why are the lenses used for contacts or glasses curved rather than flat?
Curved lenses can refract or bend light to correct the eye's vision.