Biceps
A part of the body where two bones come together and can bend.
(bone, skeleton, joint, or muscle)
Joint
The ability to see
(seeing, light, vision, blindness)
Vision
The colored part of the eye that is shaped like a donut
(pupil, cornea, lens, iris)
Iris
a part of the body that receives, processes, and responds to signals from nerves
(skeleton, eyes, tendon, brain)
Brain
A part of the body that attaches to bones and allows the body to move
(muscle, skeleton, joint, bone)
Muscle
The dark opening in the center of the eye
(cornea, pupil, vision, iris)
Pupil
The clear layer in front of the eye
(pupil, cornea, iris, retina)
Cornea
The parts of the body that carry signals from one part of the body to another part
(joints, bones, nerves, cornea)
Nerves
A part of the body that attaches muscle to bone
(bone, tendon, muscle, joint)
Tendon
The back of the eye that senses light and sends messages to the brain
(cornea, retina, iris, pupil)
Retina
If your image is blurry when using your eye model, what can you do to help make the image more clear?
You can change the distance between the retina and the cornea lens.
A baby starts crying in their stroller. True or false: Humans and dogs both process the information of a crying sound in their brains.
Could you pick up a chair if you had only muscles and no bones?
No! Muscles and bones work together as a system to give our bodies strength. Without bones, the muscles would not work and we would not be very strong.
How did our eye model work?
We used a magnifying glass to act as the cornea lens. We used an index card to reflect an image.
Why do your pupils get bigger in the dark?
Its pupils let in more light so it can see in the dark.
Imagine that a wolf sees a chipmunk and chases after it. Describe how the wolf’s body parts do that.
Eyes see chipmunk → eyes send a message along nerves to the brain → the brain decides to chase → brain sends a message along the nerves to make the legs run.
Arms and hands can help people pick up and eat food. That means that arms and hands can help people survive. Explain how the muscles, bones, and tendons inside of an arm work together as a system to help people eat, which helps them to survive.
Bones give the arm shape and structure. Tendons attach the muscles to the bones. When the muscles pull on the tendons, the tendons pull on the bone, and that’s what makes arms move. That means that the arm can move and pick up food so people can eat the food. People have to eat to survive.
Light has to go into a fish’s eyes for it to see a shark. When light goes into the fish’s eyes, the eyes send a signal to the fish’s brain. The fish’s brain can then control its fins so it can choose where to swim. Explain how the fish needs its eyes, brain, and fins to work together to help the fish survive when it sees a shark.
When light bounces off of a shark and into a fish’s eyes, it sends a signal to the fish’s brain. The fish’s brain then tells its fins to swim away. That helps the fish not get eaten by the shark, which helps it survive.
Some animals climb around at night, looking and listening for insects to eat. To do those things, they need hands, feet, eyes, and ears. On the lines below, explain how those four body parts work together as a system to help some animals climb and find food when it is completely dark out.
The animal has to see the branches to be able to climb on them. Its eyes help it see so it knows where to put its hands and feet when it climbs. Its eyes also help it see insects, and its ears help it hear insects. When it hears or sees an insect, it can go to that insect and catch it, even when it’s dark out.
Imagine that a squirrel smells a fox behind it and decides to run away. How does it do this?
Nose smells fox → nose sends a message along the nerves to the brain → brain decides to run away → brain sends a message along the nerves to make the legs run away.