⁣Grade 8 Social Studies

⁣Mutation and variation are two simultaneous events involved in the process of evolution. The main difference between mutation and variation is that mutation is an alteration in the nucleotide sequence of a gene whereas variation is any difference between individuals of a particular species.

Here is a video I created for my 6th grade science students to help them study. I hope you enjoy.

Producers make food by getting light Source food for ecosystem Consumers eating the food that’s right We cl****ify vocation

Omnivores thing is to eat it all And herbivores are consuming plants But carnivores meat eaters y'all And scavengers eat all that’s dead

It’s the flow of food Chain goes to the right It’s the flow of food Webs more closely right

Producers will make their food From photosynthesis Makes energy Then herbivores eat that Omnivores eat both it's true Then carnivores consume all that is meat

So we’re following the energy of food Food chain in line for food Arrows who's eating whom
Points to the right that's true Producer, consumer, higher levels to Food webs crossed chains of food Lines overlap they do Food webs show flow of food Producer, consumer, decomposer

Decomposers we do need them right? Breaking down organisms Returns materials back you see Bacteria and fungi too Molds, and mushrooms two major groups

It’s the flow of food Chain goes to the right It’s the flow of food Webs more closely right

Producers will make their food From photosynthesis Makes energy Then herbivores eat that Omnivores eat both it's true Then carnivores consume all that is meat

So we’re following the energy of food Food chain in line for food Arrows who's eating whom
Points to the right that's true Producer, consumer, higher levels to Food webs crossed chains of food Lines overlap they do Food webs show flow of food
Oh oh oh Oh oh oh Yeah yeah yeah Oh oh oh
If it eats first food Primary first to dine in line
And if it eats that food Secondary in line

Then if it eats that food It’s tertiary time And if it eats third food Quaternary defined

Producers will make their food From photosynthesis Makes energy Then herbivores eat that Omnivores eat both it's true Then carnivores consume all that is meat

So we’re following the energy of food Food chain in line for food Arrows who's eating whom
Points to the right that's true Producer, consumer, higher levels to Food webs crossed chains of food Lines overlap they do Food webs show flow of food Producer, consumer, decomposer

This is a two part lesson so please don't miss out on the next video. Today Mr Du Plessis teaches us the levels and functions of management in a business.
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SUMMARY: This karaoke-style music video provides a musical explanation of the structure of the cell membrane. This includes the structure of phospholipids, the key structural component of biological membranes, and how phospholipids interact with water to organize themselves into a phospholipid bilayer. The roles of membranes proteins, carbohydrates, and cholesterol is also discussed.

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Lyrics:

If you're in a cell's cytoplasm, heading outside,
Your last stop's a barrier, 8 nanometers wide,
The cell membrane: our subject for today
It's as basic to life as DNA

It's Selectively permeable, like a border patrol
of a country it maintains control.
Selecting what leaves or what gains entry
It's a guard, bouncer, watchman, patrolman or sentry.

But not just a guard, it sends signals in nerves
White blood cells use their membranes to eat germs like hors d'oeuvres,
Membranes have receptors, enzymes and junctions,
So what kinds of structure can have all these functions?

CHORUS
C-E double L, "Mem" B-R-A-N-E
Controlling transport selective permeability
Phospholipids, Carbohydrates, Proteins and Cholesterol
The Fluid Mosaic Bilayer in us all

So let's take a look at what makes up the membrane,
Phospholipids rule this domain,
In fact membrane structure emerges directly
from phospholipids' chemical properties.

There's a head and a tail on every phospholipid,
The tail's two long chain fatty acids
Bound to a glycerol, it's made to order
The tail's non-polar --hydrophobic-- fears water

The head's got a phosphate, it's charged negatively,
makes the head hydrophilic--plays in water happily
So tail avoids water while the head's attracted to it,
When phospholipids form the membrane that's how they do it.

Cause when phospholipids into water get submerged,
A phospholipid bilayer structure will emerge
The tails hang together in a water free zone,
Hear their hydrophobic moan, "water leave me alone!"

While the heads are sticking out touching all those H2Os
Tails in, heads out, it's how every membrane goes
Tails in, heads out, in a cellular sphere,
It's the bilayered basis of membranes everywhere.

CHORUS

But a cell membrane's not just a phospholipid scene
There's cholesterol, carbohydrates, lots of proteins.
In fact, membrane proteins have a presence so great,
that they often exceed the phospholipids by weight.

And all of these components are in constant motion,
Moving, mixing like a boiling potion,
Flowing like dancers in a party in Pasaic
That's why the membrane's thought of as a fluid mosaic.

Let's start with proteins since they're key in this mix.
Transmembrane proteins span the entire width.
Typically they're ports--think of channels or conveyors,
For things that don't go through the lipid bilayer.

Any protein embedded in the hydrophobic middle
Built right into the inside is considered integral
While peripheral proteins either hang on the exterior,
Or inside on the cytoplasmic interior.

Cholesterol keeps membranes flowing with ease,
In cold it keeps the lipids moving so they don't freeze,
In heat it slows the lipids down limiting their traveling,
Cholesterol: it keeps membranes from unraveling

Membrane carbohydrates work as markers or signs
So your immune system knows which flag your cells are flyin'
The blood types AB, O, and B and A
Are about the carbohydrates on red blood cell membranes.

CHORUS

From inc.com

One of the best things about life is that we never have to stop learning. There are always new skills to learn and techniques for us to adopt. When you look at the most successful people in the world, they understand this. Warren Buffet spends most of his time reading. The best entrepreneurs in the world don't act like they know everything. They all understand the fact that they have to continuously learn to be successful.

For us to live life to the fullest, we must continually look for ways to improve. Even in our own companies, we should strive to help our organizations in areas that are outside of our comfort zone. Companies from all over the world have recognized this. Billion-dollar examples like Zappos and Facebook invest heavily into their own employees. Realizing the power of teaching, they promote from within and support their staff to learn to skills to bring back to the company.

If you aren't actively looking to learn new things, here are three reasons why you might want to rethink your strategy. Self-growth is key for us to live fulfilling lives and to have a successful career.

1. You will become happier

Learning is tough and can be frustrating. This is especially true when we talk about taking on new sports like crossfit, or pushing our brain to the limits trying to code. But although the task is hard, nothing is greater than reaching your accomplishment. For highly challenging goals like learning to write software, it is such an amazing feeling when your code works bug free. When we play sports, beating our personal records gives a high like none other.

Several studies have shown that the more ambitious goals that we set, the happier we are. And when we decide our own goals, our happiness is not reliant on others. We pick how many hours we practice, and we take ownership over what we achieve. Personal development is a way to guarantee us serenity from within.

2. You'll become irreplaceable to your team

The person who can adapt the most wins. This is a piece of advice I learned reading about fighter pilots in the Air Force. It is not about the strength of the plane, but instead it's the ability to react to different situations that makes a fighter jet. The best fighter pilots can adjust to more circumstances than the norm, making them much deadlier.

This same idea can be applied to our value to our organizations. If you can only sell your product, you are limited by your contribution. If you can sell, build and run operations, now you've become irreplaceable.

3. You'll stay humble

Every interaction you have is a chance to learn something. One of the recent ways I've learned this is through watching Ted Talks. What I love about these short speeches is that you can learn so much about subjects you thought you'd have no interest in. But by keeping an open mind, you discover patterns in how people present their talks that you can learn from. It just shows you that no matter whom you meet, there is always something valuable to learn from the encounter.

4. You'll become a great coach

The only way to mastery is through teaching. One of the best feelings in the world is teaching others what you've learned. Not only will it affect the person you're teaching, but also they in turn will teach others.

As a leader of your organization, you need to make learning a part of your culture. A way to start this is by teaching others what you've learned over time. You want to become such a great teacher that your company can run itself without you there. When you've achieved that, you've truly accomplished the state of mastery.

FREE: My New Booklet “How To Find Your Purpose” is Here! Click Here To Read “How To Find Your Purpose” Now: https://m.me/jayshettycoaching?ref=free-booklet-yt

Credits:
“Two things define you: Your patience when you have nothing and your attitude when you have everything.” George Bernard Shaw
" Don’t let people’s compliments go to your head, and don’t let their criticisms go to your heart." Lysa TerKeurst
"It's better to know how to learn than to know." Dr Seuss

⁣What are examples of silent letters?

Image result for Silent Letters
In English pronunciation, a silent letter—a term used informally—is a letter or letter combination of the alphabet that is usually not pronounced in a word. Examples include the b in subtle, the c in scissors, the g in design, the t in listen, and the gh in thought.

⁣An adjective is a word that modifies or describes a noun or pronoun. Adjectives can be used to describe the qualities of someone or something independently or in comparison to something else. Examples: Adjectives in a sentence I like old houses. The boy is tall and skinny. Jane is smarter than her brother.

⁣a comparison of two otherwise unlike things based on resemblance of a particular aspect. : resemblance in some particulars between things otherwise unlike : similarity. : inference that if two or more things agree with one another in some respects they will probably agree in others.

The Cell Theory Song
Mr. Tamez

Lyrics:

CHORUS
All living things are composed of cells
Cells are the basic units of structure and function in living things
New cells are produced from existing cells

VERSE 1
Back then was a guy named Hooke, cut some cork and he had a look
Underneath his microscope tiny rooms that he saw in groups
Empty rooms that looked like shells He's the one that called them cells
Listen up cause we're not done Cell theory had just begun
Add one scientist to know the inventor of the microscope
Anton von Leeuwenhoek saw cells move and he was like "That's dope"

PRE CHORUS
Cell theory, cell theory, cell theory, cell theory, cell theory, go!

VERSE 2
If you thought this was complete take a breath and have a seat
Two scientists to have their say Schleiden and Schwann to save the day
Schleiden said all plants have cells they are alive and we can tell
The next year Mr. Schwann could see all animals have cells that live and breathe
Oh they live and breathe Live and breathe

BRIDGE
In 1855, Rudolph Virchow proposed that all cells
Come from other cells
This was the final discovery
That ended cell theory cell theory

⁣A verb is a word that indicates a physical action (e.g., “drive”), a mental action (e.g., “think”), or a state of being (e.g., “exist”). Every sentence contains a verb. Verbs are almost always used along with a noun or pronoun to describe what the noun or pronoun is doing. ⁣A tense is a form of the verb that allows you to express time. The tense of the verb tells us when an event or something existed or when a person did something.

This HD dramatic video choreographed to powerful music introduces the viewer/student to the Science of Chemistry. It is designed as a motivational "trailer" to be shown by teachers in Chemistry, Biology and Physical Science cl****rooms in middle school, high school and college as a visual Introduction to the wonders of atoms and matter. See more of my videos at my channel: http://www.youtube.com/user/sfgregs?feature=mhum.

Subscribe to my channel for other video trailers in Biology, Chemistry, Earth Science, Physics and Astronomy. I will be releasing new ones periodically.


Please rate this video and feel free to comment. If you like it, please help me spread the word by posting links to it on your social media websites. The more students who can enjoy these dramatic videos, the better!

I wish to thank all the quality video and music producers whose postings enabled me to ****emble this video for educational use. I particularly want to thank the C****iopeia Project for their excellent visuals, and to teacher Shanna Collins for the inspiration to make the video.

Music is a mix of four pieces.

To best enjoy this video, view on a big screen and turn up your speakers. The music is powerful and dramatic!

I can customize this video to add your name or school name at the end credits, for a very modest fee. If interested, email me at "fsgregs@comcast.net".

Until recently, you were able to download my videos for free from my other video storage site (vimeo.com). Recently, however, they began charging a significant membership fee to enable that feature, so downloading from there is no longer available. However, you can search for and obtain free download addons for your browser that will allow you to download my videos from either YouTube or Vimeo.

⁣Mutations and sexual reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are p****ed on to offspring. The “big prize” in natural selection is p****ing on genetic information. Natural selection acts on populations.

⁣Grade 8 Science

⁣Worms are members of several invertebrate phyla, including Platyhelminthes (flatworms), Annelida (segmented worms), Nemertea (ribbon worms), Nematoda (roundworms, pinworms, etc.), Sipuncula (peanutworms), Echiura (spoonworms), Acanthocephala (spiny-headed worms), Pogonophora (beardworms), and Chaetognatha (arrowworms).

⁣Grade 8 English

Reading

#TypesOfRocks

This video is part of a playlist having the following videos. Watch all of them in sequence for a better learning experience.
Enjoy learning :)

Video no.1 Uses and Importance of Rocks in our Daily Life
https://youtu.be/60wmyyCaUgQ

Video no.2 Rocks and Their Types
https://youtu.be/Nq4yZ45UU98

Video no.3 Rock Cycle
https://youtu.be/uXxYRP_hpqg

Topics Covered:
• Rocks
• Types of rocks
• Igneous rocks
• Sedimentary rocks
• Metamorphic rocks
• Types of igneous rocks
• Intrusive igneous rocks
• Extrusive igneous rocks

I hope you liked our video.
Kids should spend time watching informative videos and expand their knowledge day by day.
Kids retain what they see in audio-visual lessons so make them watch informative videos rather than cramming things.

If you want to learn any topic, please free to write to us, we will upload the video to help you out as soon as possible.
We can also create a customized u tube playlist for the topics you want to learn.
Your feedback is important to us.

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About us:
Welcome to Tutway.
A unique platform where learning is fun.
Now there is no distinction between kids’ fun time and study time.
At Tutway, we believe in a very simple idea that audio-visual learning is the most effective tool for grasping knowledge. Many researchers have proven that kids learn a lot by playing interactive games and watching audio-visual animated lessons as compared to reading from books.

That's when Tutway comes to the rescue.
Tutway is a supplementary education program where kids can learn at their own pace. The students can watch animated videos that are so meticulously made that they can understand even the most complex concepts very easily. There is a question bank at the end of each video where students can answer those questions multiple times and test whether they have grasped knowledge completely or not.
We have information systems embedded in the program where parents can monitor real-time performance of their kids and get up to date information about their performance, including quizzes attempted and the marks got in each quiz, both in tabular and graphical formats. Regular reports are e-mailed to the parents so that the parents can analyze their kids’ performance.
If we want to learn high-level concepts, we should have a clear understanding of the basic concepts. For instance, if kids don't know about addition and subtraction, they cannot do multiplication, and if they don't know about multiplication, they cannot do division, and if they don't have knowledge of these four basic operations, Algebra cannot be done by them, and it goes on and on.
The same applies to the English language if kids don't have sound knowledge of grammar and vocabulary; it becomes extremely difficult for them to have their communication skills.
Knowledge of the scientific concepts is also required for observing physical, chemical, biological phenomena happening all around us.
That is why; Tutway has thousands of animated videos on Maths, English, and Science to clear the basics of these subjects. It perfectly suits most of the educational needs of most of the students, regardless of their learning abilities.
So hurry up, download the Tutway app and book a free-demo cl**** to make education interactive and fun experience.

DNA Song. Here is a song I made for a student to help the study. I hope you enjoy!
Here we go, genetic code, determines how you live
Oh size, shape, color and all makes you who you is
You should know the chromosomes has thousands of genes
A T and G C makes types of proteins
During synthesis, the cell uses info
From a gene on a chromosome
Out in the cytoplasm and on the ribosomes
Info needs to get out the nucleus

It's the DNA, in ya
It's the genetic code, in ya
Paring Nitrogen bases, in ya
The double helix ladder, in ya
Oohh
Adenine goes with Thymine
And Guanine pairs with Cytosine
Matched pairs of DNA, bases
How cells produce proteins
Ooh, no, no, no

Send, send, send the code out to the cytoplasm
This genetic messenger is ribonucleic acid
RNA, DNA, differ in many ways, yeah
RNA molecules look like one side or strand

Ribonucleic acid has a different sugar
Has uracil instead of thymine
Messenger RNA sends info out to the cytoplasm
Transfer adds amino acids to proteins

It's the DNA, in ya
It's the genetic code, in ya
Paring Nitrogen bases, in ya
The double helix ladder, in ya
Oohh
Adenine goes with Thymine
And Guanine pairs with Cytosine
Matched pairs of DNA, bases
How cells produce proteins

Messenger RNA production
Ooh, attaches to a ribosome
Transfer attaches to messenger
Ribosome releases, the completed protein chain


But don't you know it's the DNA, in ya
It's the genetic code, in ya
Paring Nitrogen bases, in ya
The double helix ladder, in ya
Oooh
Adenine goes with Thymine
And Guanine pairs with Cytosine
Matched pairs of DNA, bases
How cells produce proteins

Yeah, how cells make proteins
It's in the DNA
Ooh how cells make proteins
No, no, no, no

⁣“Active Transport is defined as a process that involves the movement of molecules from a region of lower concentration to a region of higher concentration against a gradient or an obstacle with the use of external energy.”