Muscles and Skeleton
When a muscle bulges, does it get shorter or longer?
Shorter
True or False - the pupil of the eye is black
False - it is clear
What does the word nocturnal mean?
Most active during the night.
What is the most important organ in your body?
The brain.
Jacob wants to make an eye model. He has a magnifying lens, a flashlight, a piece of paper, and a donut. How should Jacob arrange these objects to make an eye model? In a real eye, light travels through the corneal lens, goes through the pupil, and reaches the retina at the back of the eye.
Flashlight, Magnifying Lens, Donut, Paper
What is the place where your bones meet and can move?
Joint
What is the clear layer over the front of the eye?
Cornea
What happens to your pupil when a room is dark? What happens to your pupil when a room is bright?
Dark - Pupils get bigger or expand
Bright - Pupils get smaller
What are the 5 senses your body uses to gather information from the world around you?
1. Sight (eyes)
2. Touch (feeling)
3. Smell (nose)
4. Hearing (ears)
5. Taste (tongue)
Shelly has an idea for a new superhero that she’s calling “The Muscle.” Shelly tells you: “The Muscle doesn’t have a skeletal system - they have no bones! Because they don’t have any bones to get in the way, The Muscle is super strong. When The Muscle meets supervillains, they always win the battle and survive.” Do you agree with Shelly that The Muscle would be a strong superhero? Do you think they would survive a battle with a villain? Why or why not? Support your argument with reasoning.
No, I do not agree with Shelly. Muscles and bones work together as a system to give our bodies strength. Bones attach to muscles with tendons and that allows our muscles to move. Without a skeleton or bones to attach to, we couldn’t use our muscles. We would just be a bag of skin, muscles, and other organs that couldn’t move. The Muscle would not be a strong superhero.
What is it called when scientists learn about body parts by cutting apart and observing bodies?
Dissection
Describe what individuals see when they have no sight, some sight, and blurry sight.
All black, light and dark but no shapes or objects, can see shapes and objects but the edges are blurry.
What are the three parts of the outside of the eye?
white (sclera), iris, pupil.
What are the cords that carry information from your 5 senses to your brain?
Nerves
Darius closely examines the eyes of different animals. He notices that cats, owls, and raccoons have much larger pupils than blue jays, humans, and coyotes. Darius makes the claim that the reason cats, owls, and raccoons have larger pupils is because they are predators. He says that predators have large pupils because the main function of pupils is to help animals search for prey and survive. Do you agree with Darius? Why or why not? Support your answer with evidence
No, I do not agree with Darius. Some of the animals that have small pupils, like coyotes, are predators. Raccoons are omnivores and eat all sorts of things in the trash. So I don’t think they are predators, but they have large pupils. All the animals with large pupils are active at night. All the animals with small pupils are active during the day. I think this is the reason why some animals have larger pupils. Larger pupils let more light into the eyes, so those animals can use the dim light of the Moon to see at night.
What are the strings that make bones move?
Tendons
What is the purpose of the cornea lens?
What causes "red eye" in flash pictures?
Blood vessels in the back of your eye.
What type of nerves run INTO your brain? What type of nerves run OUT FROM your brain.
Into - sensory nerves
Out from - movement nerves
If you tried to use an eye model at 10:00 pm, what would happen?
The eye model won’t work as well because there won’t be as much light to illuminate objects
How is the human body similar to a robot? List at least 3 examples.
*Any appropriate answers from page 1 of lesson 1 notes*
What are the two main reasons someone may be blind?
Damage to the cornea lens, and damage to the retina.
Explain how your eyes adjust to "adjust" to darkness allowing you to see better.
Your iris muscles open up the pupil so that any extra light that’s in the room can enter your eye, allowing you to see better.
Your brain is the most mysterious part of the human body. Give two examples of what scientists DON’T know about the brain
How does the brain store memories? Why do we dream?
When making an eye model, if the picture on your "retina" page is blurry, what could you do to make the image crisp and clear?
You can change the distance between the retina and the cornea lens.