⁣School staff are the people who work at a school. There are teaching staff, and there are other non-teaching workers, too. All school staff members at schools in the USA do important jobs for your child’s education.

Reading

⁣Making connections is a reading comprehension strategy that involves linking what is being read (the text) to what is already known (schema, or background knowledge). The strategy promotes engagement while reading and, in turn, a deep understanding of the text.

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SUMMARY: This video teaches about the process of mitosis. Mitosis is a process of cell division where a single cell divides to produce two genetically identical daughter cells, each with the same number of chromosomes as the parent cell. It consists of several stages—prophase, metaphase, anaphase, and telophase—followed by cytokinesis, ensuring equal distribution of chromosomes to each new cell.

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LYRICS
Interphase is cell division's longest part,
nuclear membrane's intact as it starts,
The cell's growing, cytoplasm flowing,
chromosomes get duplicated, DNA gets replicated

Chromosomes are spread out so they can't be seen distinctly
But note the nucleolus, the ribosome factory
Outside the nucleus are two centrosomes,
They later make a spindle which will pull apart the chromosomes.

Prophase follows, the chromosomes condense,
Each is made of two sister chromatids, (looks) like an "X"
Each sister is a clone, the closest of kin,
And a centromere connects them like siamese twins,

The nucleolus disappears it melts away,
as the cell takes a ribosome production holiday,
the centrosomes separate, start spindle formation
for separating chromatids and cell elongation.

CHORUS
Mitosis, chromosomal ride
Inter-, pro-, meta-, ana-, telophase, divide
Eukaryotes go from one cell to two,
Mitosis, how cells renew.

In late prophase --prometaphase,
The nuclear membrane disintegrates,
The centrosomes migrate to the cell's opposing sides,
And between them the fibers of the spindle wend and wind,

The spindle's made of microtubule fibers which attach
to chromosomes at kinetochores, a protein patch
that serves like a handle that the fibers can grasp,
When they pull apart the chromosomes, splitting them in half,

The spindle moves the chromosomes with nudges so fine,
Into linear formation on the 50 yard line
A location equatorial defining metaphase,
where the chromosomes are lined up on that middle place

CHORUS

The spindle fibers pull on the kinetochores,
A cellular molecular mitotic tug of war,
The centromere snaps, sisters get separated,
Now these chromatids are chromosomes, they've been upgraded

This snapping separation defines anaphase
The "A" for "apartness", for moving different ways,
Kinetochore spindle fibers separate the sisters
See 'em waving goodbye, calling out "I'm gonna miss ya,"

And the other spindle fibers push and grapple like felons
Makes the cell elliptical like a watermelon,
In telophase membranes form 'round the chromosomes
Which spread out as the nucleoli come on home

CHORUS

In animal cells there's a ring of micofilaments
that form at the equator and they cinch themselves in
Tighter, tighter, tighter, tighter 'til the cell is in two pieces,
Yeah in animals, that's cytokinesis

But it's different in plants in them the cell divides
By building a new cell wall from the inside
As the Golgi sends vesicles with cellulosic goo,
Which makes a plate, then a wall, divides the cell in two

And instead of one mother cell we now have daughters two
Identical twins, kind of old but kind of new,
From your single celled beginning this is how you grew
And for single celled eukaryotes it's reproductive too!

Major image credits (complete image credits available upon request)
1. The video of cell division shown during the chorus is by John Daum and Gary Gorbsky, Oklahoma Medical Research Foundation.
2. The image of the mitotic spindle at metaphase and the image of anaphase is from https://wikispaces.psu.edu/display/23.... It is used by permission of the Department of Biology at Penn State University.

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⁣Jack's Birdhouse. Jack wants to build a birdhouse. He gets some wood. He gets some nails and paint. His mom helps too. She gets a saw and a hammer

⁣Blood clotting, or coagulation, is an important process that prevents excessive bleeding when a blood vessel is injured. Platelets (a type of blood cell) and proteins in your plasma (the liquid part of blood) work together to stop the bleeding by forming a clot over the injury

⁣Visualize and strategize

⁣The haiku is a Japanese poetic form that consists of three lines, with five syllables in the first line, seven in the second, and five in the third. The haiku developed from the hokku, the opening three lines of a longer poem known as a tanka. The haiku became a separate form of poetry in the 17th century.

⁣Sound waves enter the outer ear and travel through a narrow p****ageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.

⁣Phonics involves matching the sounds of spoken English with individual letters or groups of letters. For example, the sound k can be spelled as c, k, ck or ch. Teaching children to blend the sounds of letters together helps them decode unfamiliar or unknown words by sounding them out.

⁣Grade 10 Mathematics

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⁣Grade 10 English

⁣What is a simple definition for matter?


Matter is anything that takes up space and can be weighed. In other words, matter has volume and m****. There are many different substances, or types of matter, in the universe.

Mr. Andersen describes the major groups on the periodic table.

Intro Music Atribution
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: http://www.freesound.org/peopl....e/CosmicD/sounds/725
Creative Commons Atribution License

⁣Grade 8 Social Studies

⁣Perimeter is the distance around the outside of a shape. Area measures the space inside a shape.

⁣A food chain shows how each living thing gets its food. Some animals eat plants and some animals eat other animals. For example, a simple food chain links the trees & shrubs, the giraffes (that eat trees & shrubs), and the lions (that eat the giraffes). Each link in this chain is food for the next link.

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This video will help you to learn What is the structure and function of the skin? with Example.

What is the structure and function of the skin?

Have you ever wondered what is our body’s largest organ?

Could it be heart? What about your lungs ? or your brain?

No, they are not nearly the body’s largest organ?

You can see your body’s largest organ right now?

What are we talking about?

The skin of course!!

The skin is the largest organ of the body, accounting for about 15% of the total adult body weight.

It performs many vital functions, including protection against external physical, chemical, and biological ****ailants, as well as prevention of excess water loss from the body and a role in thermoregulation.

The skin is continuous, with the mucous membranes lining the body’s surface.

The integumentary system is formed by the skin and its derivative structures.

The skin has basically three layers - Epidermis, dermis and hypodermis.

The epidermis is the outermost layer of skin which provides a waterproof barrier and creates our skin tone.

The epidermis consists of a specific group of cells known as keratinocytes which function to synthesize, keratin which is a long thread-like protein with a protective role.

The dermis is beneath the epidermis and it contains tough connective tissue, hair follicles, and sweat glands.

The dermis is fundamentally made up of the fibrillar a structural protein is known as collagen.

The dermis lies on subcutaneous tissue or panniculus, which contain small lobe of fat cells known as lipocyte.

The deeper subcutaneous tissue or hypodermis is made of fat and connective tissue.

The color of the skin is created by special cells called melanocytes, which produce the pigment melanin.

Melanocytes are located in the epidermis.

Thanks for watching this video.

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