⁣A homophone is a word that has the same pronunciation as another word but is spelled differently and has a different meaning. For example 'toe' and 'tow', 'rows' and 'rose', 'there' and 'their' and they're'. A homograph is a word that has the same spelling as another word but has a different meaning.

⁣Stage 1: Egg. Stage 2: Tadpole. Stage 3: Froglet (young frog) Stage 4: Adult frog.

Scientists at the University of California Los Angeles have found a way to create stunningly detailed 3D reconstructing of platinum nanoparticles at an atomic scale. These are being used to study tiny structural irregularities called dislocations.

Read the paper here: http://dx.doi.org/10.1038/nature12009

Sign up for the Nature Briefing: An essential round-up of science news, opinion and analysis, free in your inbox every weekday. https://go.nature.com/371OcVF

⁣Grade 10 English

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SUMMARY: This movie explains the biology of enzymes. Enzymes are protein catalysts that accelerate chemical reactions by lowering activation energy, playing a crucial role in processes like digestion and metabolism in all organisms. They bind to substrates at their active site, facilitating the transformation of reactants into products, and their function depends on factors like pH and temperature. However, changes in these environmental conditions can denature enzymes, reducing or destroying their activity, making them essential but sensitive players in biological systems.

My hope is that this video will catalyze lots of learning.

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Enzymes LYRICS:
They're the protein catalysts in every organism
ENZYMES!
Through enzymatic action your metabolism's driven
ENZYMES!
In staphylococcus, jellyfish, tarantulas and trees,
They lower activation energy
Enzymes, in you and me now
ENZYMES!

You got 'em in your cells where they do cellular digestion,
ENZYMES!
You got 'em in your mouth and in your stomach and intestines
ENZYMES!
The thing an enzyme acts upon is called a substrate.
They fit like lock and key with complementary shape
Enzymes, speed up reaction rates
ENZYMES!

An enzyme binds its substrate at its active site
ENZYMES!
Bound together in a complex where they snuggle so tight,
ENZYMES!
New bonds will form and break due to the active site's chemistry
Reactants become products, it's the enzyme's specialty,
Product gets release enzyme repeats its action readily
ENZYMES!

Like any molecule an enzyme's shape defines its function.
ENZYMES!
Environmental change that changes shape leads to malfunction,
ENZYMES!
Every enzyme has a pH where it catalyzes best,
a pH change will set enzyme activity to rest.
Enzymes are so sensitive they're easily upset
ENZYMES!

More heat until a certain point increases their efficiency
ENZYMES!
But too much heat denatures them destroying their activity
ENZYMES!
That's why a fever running high's a dangerous situation,
All that heat can alter enzymatic conformation.
Keep it 98.6 for enzyme optimization
ENZYMES!

Enzymes in saliva will break starch into glucose
ENZYMES!
If you lack the enzyme lactase then you won't enjoy milk lactose,
ENZYMES!
Tay-sachs, galactosemia and PKU disease,
All caused by inherited enzyme deficiencies
ENZYMES, they're what everybody needs
ENZYMES!

⁣A gene is a specific segment of DNA that tells cells how to function. A genome is the entirety of the genetic material inside an organism.

⁣A conjunction is a word that is used to connect words, phrases, and clauses. There are many conjunctions in the English language, but some common ones include and, or, but, because, for, if, and when. There are three basic types of conjunctions: coordinating, subordinating, and correlative.

Addition is ⁣the action or process of adding something to something else.

How to add tens using models such as bars of 10, rods of 10, counters. How to complete a spider web puzzle for sums of tens.

Grade 1 Math Playlist
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⁣What helps kids understand what they read? Being an active reader is key. That means focusing on the text, questioning it, and taking mental notes.

⁣There are four types of sentences: simple, compound, complex, and compound-complex. Each sentence is defined by the use of independent and dependent clauses, conjunctions, and subordinators.

⁣comma. noun [ C ] us. /ˈkɑm·ə/ a mark (,) used in writing to separate parts of a sentence showing a slight pause, or to separate the various single items in a list.

⁣An anagram is a literary device where the letters that make up a word, phrase, or name are rearranged to create new ones. The original word or phrase is the subject of the anagram, the anagram is what is created by repurposing those letters.

⁣A pronoun is nothing but a word that is used as a replacement or as a substitute for the noun or the noun phrase in a sentence. A conjunction in simple terms is a word that connects two or more sentences into a single sentence.

⁣The skin also acts as an excretory organ. It is estimated that 3 to 4 million eccrine sweat glands which together roughly weigh the same as one kidney (i.e., 100 g) are distributed over almost the entire human body surface.

⁣Grade 8 Mathematics

Welcome to a 8 part series on what are the functions of a business. In this fourth lesson Mr Du Plessis teaches us about public relations. Please don't miss out on any of the up coming videos. Previous video linked below:
https://youtu.be/Q2H_2zUX-ps
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Sorry about the lack of uploads lately, I'm working on part 3 of my This Is Chemistry series, and it has really taken up a lot of time, but it will be awesome. Be sure to subscribe, and thanks for watching.
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⁣Grade 10 English

Human Biology: A series of animated songs and videos about human biology by Peter Weatherall: kidsinglish.com