Learn the difference between an element, a compound, and a mixture. An element has the same number of protons, a mixture is two or more elements chemically combined, and a mixture is not chemically combined.

Aprende la diferencia entre un elemento, un compuesto y una mezcla.

English
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Learn about the steps of protein synthesis, the creation of long chains of amino acids from DNA.
It begins in the nucleus with transcription and moves to the ribosome where translation takes place.
Translation occurs in the nucleus when RNA polymerase attaches to the DNA and unzips a portion of the DNA.
mRNA or messenger RNA begins to fill in the DNA.
RNA is similar to DNA but contains Uracil instead of thymine.
This strand of mRNA leaves the nucleus and travels to a ribosome where translation will begin.
The messenger RNA will be read three units at a time called a codon.
The anticodon on the transfer RNA aligns with the correct codon and delivers an amino acid.
This continues and a polypeptide chain begins to grow.

Translation Practice Problems
https://youtu.be/_t1f1vRnCEo

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Nucleus Structure
What the parts of the nucleus?
Cell parts and function-I have always heard that the nucleus is the brain of the cell. But why is it the brain, and what are the major parts of the nucleus?
The nucleus is a large organelle. In fact, you can see the nucleus with a compound microscope.
Here it is inside a cheek cell.
I’m going to look at four main components of a nucleus and the role each part plays.
The nucleus is surrounded by a nuclear membrane. It is very similar to the cell membrane, and it is composed of two layers. It protects and houses the other parts of the nucleus.
You can also find ribosomes on the outside of the nuclear membrane.
Up next are nuclear pores. These are openings found on the nuclear membrane.
They allow items to move in and out of the nucleus. An example would be the mrna. It would travel through a nuclear pore to leave the nucleus.
Nucleoplasm This is a gel-like material found inside the nuclear membrane. You will find the DNA suspended in the nucleoplasm
Nucleolus. This is almost like a nucleus inside the nucleus. It has a very high concentration of DNA,
It is also the site of transcription which is the starting point of protein synthesis.
This is how the nucleus controls the cell. It has all the information on how to make stuff like proteins inside the cell. These proteins are used for many purposes inside the cell.
Ribosomes are also made at the nucleolus
All eukaryotic cells have a nucleus and bacteria and other prokaryotic cells do not have a nucleus.

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The Terrestrial planets are the four closest planets to the sun. The inner planets in order are Mercury, Venus, Earth, and Mars.
They are rocky planets that have few moons, no rings, and craters.
I review the characteristics of the terrestrial planets.

Scale model picture of planets
http://www.lesud.com/lesud-astronomy_pageid81.html

Learn how to create a dichotomous key. A dichotomous key is a method to identify objects like animals, rocks, trees, plants, and many other objects. In this video, I use monsters in order to show you how to create a simple dichotomous key. Dichotomous means two parts so the key uses two questions at each step. There are different types of dichotomous keys but in this video I show you how to make a simple key.

Transcript
http://www.moomoomathblog.com/....2021/04/how-to-make-

Ocean Biome Characteristics
The earth is 70% water. 97% of this water is made up of our oceans and seas.

Most of us only experience the ocean from the beach or on shore. If you go underwater and out into the ocean you discover it is teaming with life.

The ocean can be divided into 5 major oceans
The Pacific which is the largest, the Atlantic, Indian, southern, and the Arctic ocean.

The ocean is teeming with life. It includes animals as large as a 40-foot humpback whale and as small as microscopic plankton.
It includes a huge variety of plants and coral reefs that stretch for miles.
It also includes the largest mountain range called the mid ocean ridge.
The ocean impacts our weather and has been used for thousands of years as trade routes.

We play on the beaches of oceans and wonder what can be found in the Mariana trench which is 32,000 feet deep.

So there you have a very quick overview of our most diverse and largest biome-the ocean

Symmetry in animals
In this video, you will learn about two types of symmetry, radial, and bilateral symmetry.
Animals with radial symmetry are circular in shape and bilateral symmetry results in an animal with two equal sides.

Air masses are large bodies of air with similar temperature and humidity throughout.
In the video, I cover maritime and continental air masses. Maritime air masses form over the water and continental air masses form over land.
In addition, there are maritime tropical, maritime equatorial, maritime polar along with several types of continental air masses.

An introduction to three gas laws. I cover Boyle's law,charles's law, and Gay Lussac's.
For each law I cover the constant, what the law states, the formula, and the density.

00:00 Introduction to Gas Laws
00:20 Boyle's Law explanation
01:07 Charles's Law
01:53 Gay Lussac's law or pressure temperature law

How clastic rocks form. Sedimentary rocks are derived from igneous, sedimentary and metamorphic rocks.
Sedimentary rocks make up around 75 percent of the rocks at the earth's surface
Let’s take a look at how clastic sedimentary rocks form. Clastic sedimentary rocks are the group of rocks most people think of when they think of sedimentary rocks. Clastic sedimentary rocks are made up of pieces of pre-existing rocks called clasts.
These sedimentary rocks follow wedcc in order to form
Weathering:
Erosion
Deposition
Compaction
Cementation

The Earth is 70 % water. However, only 3% of this water is freshwater. Much of this freshwater is frozen in glaciers, you will find some of the water in rivers and streams, and almost 30% of this freshwater is groundwater.
But What is groundwater? Groundwater is water that finds it way between the gaps of rocks and sediments underground.
As the water seeps into the ground it may find it’s way into an aquifer. Aquifers are underground rock layers saturated with groundwater. An aquifer is not an underground river but large porous layers of rock.

Weathering breaks down the rock, and erosion carries the rock away. In this video, I explain the difference between weathering and erosion.
Weathering weakens rocks and breaks the rock down using chemical or physical changes.
The physical changes may be abrasion, wind, water, or ice.
Chemical changes include oxidation, hydrolysis, and carbonation.
Erosion moves the broken down rock away. This may include wind, water, or ice.
Erosion #shorts
https://youtu.be/YbN8K_fL21g

You may also enjoy.....
Weathering-Erosion-Deposition
https://youtu.be/fLDjARWZmCA

How do I memorize 7 8 9 times table? In this video, I show you how you can memorize these tables, or multiply with your hands. However, the secret to learning the 7,8,9 tables is to practice.

You may enjoy .....
Memorize 7's
https://youtube.com/shorts/5ihiDmNLIE4

Learn about an energy pyramid and how the transfer of energy is demonstrated. A trophic pyramid shows where most of the energy in an ecosystem can be found. Each level is called a trophic level and as you move up trophic levels 90% of the energy is lost.

What is Ecology the study of? Ecology is the study of how organisms interact with one another and their environment. In order to help understand what ecology is I give examples of Ecology.
These interactions can be between biotic and abiotic factors along with different levels of an organization like an organism, a community, a population or an ecosystem.

Transcript
http://www.moomoomathblog.com/....2021/03/what-is-ecol
More Information

Learn how to use a factor tree to find the GCF of 12 and 15.

Most air masses form over cold areas called polar regions or warm tropical areas.
In addition, they will form over oceans and be moist. Air masses that form over the ocean are called maritime and they form over continents. Air masses that form over continents are dry and are called continental air masses.
Remember air masses take on the conditions of where they are formed.
Let’s take a look at all of the air masses the Earth has
Maritime tropical are warm and moist
Maritime equatorial are hot and moist
Maritime polar cold and moist
Continental tropical warm and dry
Continental polar cold and dry
Continental arctic and Antarctica very cold and dry

Video of Jet Stream
Title: Aerial Superhighway.ogv
Author: NASA/Goddard Space Flight Center
Date: 24 January 2012

This video is about the Law of Superposition and includes a demo to help with understanding.
The law of superposition is that the youngest rock is always on top and the oldest rock is always on the bottom. so the relative ages came to be arranged by the depth of the rocks.

The tropical rainforest is located around the equator and is hot, humid, and receives much rainfall.
An introduction to Biomes
http://www.moomoomathblog.com/....2023/05/an-introduct

Types of Animal Movement
In this video I show some of the different ways animal move. Some animals move on 4 legs, others on 2. Some animals move by oozing along, while others swim.
Enjoy this video on animal movement.

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For more Life Science videos and summaries see,
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