Human eyes
Draw a model and explain what the human eyes look like in bright light.
Your picture should show an eye with a small pupil. The pupil is small because it is keeping too much light from getting in.
How does light travel?
Light travels in a straight line.
Name and explain two external structures that help a wolf to survive.
Sharp teeth for catching prey and scaring away predators.
Large ears for hearing prey.
Excellent eye sight for seeing prey.
Thick coat of fur to keep warm.
Name and explain an internal structure that a wolf has that helps it to survive.
Answers may vary:
They have a large brain capacity. Their brain helps them interpret signals from their eyes, ears and nose to help them catch prey.
Draw a model and explain what human eyes look like in the dark.
You should have drawn an eye with a large pupil. Our pupils get large in the dark because they are trying to get more light into the eye.
Draw a rabbits eyes and explain characteristics of their eyes that could be an advantage for survival.
Answers may vary: Your drawing should show that the rabbits eyes are on the side of its head so that the rabbit can see predators coming from other directions.
Name two external structures that help a frog to survive.
Answers may vary:
Webbed feet that help them to swim.
Muscular legs for jumping and swimming.
Eyes that enable them to see both on land and in water
Name and explain an internal structure that helps frogs to survive.
Answers may vary:
Frogs have internal gills that help them to breathe underwater.
You are in a dark room looking at a new toy. Your friend doesn't know they are in there and turns out the light. It is totally dark in the room. There are no windows or cracks in or around the door. No light can enter the room. Choose the answer that describes how you would see the toy and explain your choice.
A. Your eyes will eventually adjust to the darkness and you will see the toy.
B. Your eyes will adjust to the darkness so you can see the outline of the toy but not the colors of the toy.
C. You will see the faint outline of the toy after your eyes have had time to adjust.
D. You will not see the toy, regardless of how much time you wait for your eyes to adjust.
E. You will see the shadow of the toy after your eyes have had time to adjust.
D. You will not see the toy, regardless of how much time you wait for your eyes to adjust.
Your eyes need some light to be able to see. They will not adjust in complete darkness no longer how long you wait. Some light is needed to see the toy.
Draw a mountain lions eyes and explain characteristics of their eyes that could be an advantage for survival.
Answers may vary. They have slanted pupils to allow more light in so that they can better see in the dark. Their eyes are in the center of their head so that they can focus on prey right in front of them while they are running.
Answers may vary:
Butterflies have wings that help it to fly.
Butterfly's color helps them to blend in or warn away predators.
Their antennae help them to smell (they do not have a nose) and to sense predators.
Name and explain an internal structure that helps a butterfly to survive.
Butterflies have holes on the outside of their body that let oxygen in and they travel to cells in the body.
Butterflies have a heart and that helps to move blood through out their body. Their blood is a greenish yellow color.
You are in a dark room and cannot see. You crack the door to allow some light in. Your eyes adjust and you can see the toy. Draw a picture showing how you are able to see the toy.
Your picture should show the light coming in, shining on the toy in a straight line, reflecting off of the toy and coming to your eyes.
How are eyes that glow in the dark an advantage?
They help an animal to see in the dark so they can escape predators or hunt for prey.
Name and explain two external structures of an armadillo that help it to survive.
Answers may vary:
The armadillo has a had shell that protects its body.
The armadillo has short legs and long claws for digging.
They have a long sticky tongue for catching insects.
Name an internal structure of an armadillo that helps it to survive.
Their brains help them interpret signals from their ears and nose (They have poor eye sight and rely on other senses).
They have veins and arteries in their legs that help them to conserve energy. They are very cold blooded and this helps to keep heat in their bodies.
You are in a dark room. Someone turns the light on suddenly. You cannot see because it is too bright. Explain why you cannot see.
You cannot see because your pupils were dilated (large) because of being in the dark. When the light came on suddenly, your eyes did not have time to adjust and too much light got in which made it so that you couldn't see.
You are outside with your dog. You see an object in the yard but cannot tell what it is. You go get a flashlight. Explain how the flashlight helps you to see. (You may draw a picture to help with your explanation.)
The light from the flashlight travels in a straight line from the flashlight to the object. The light shines on the object, reflects off of the object and comes to our eyes where our brain interprets what we are seeing.
Name and explain two external structures of a raccoon that help it to survive.
Answers may vary:
Eyes that glow in the dark help the animal to see predators at night.
Their nose helps them to smell prey and predators nearby.
Their ears help them to hear predators coming.
Their feet and claws help them to climb trees and escape predators.
Their color fur helps them to blend in especially at night.
Name an internal structure that helps a raccoon to survive.
Answers may vary: A raccoons brain helps it to interpret signals from its senses (eyes, ears and nose) and tells it how to react.