Learn to memorize the 11 Organ systems with mnemonic devices in order to memorize 11 body systems. The 11 organ systems are,
Muscular, Urinary, Respiratory, Digestive, Endocrine, Reproductive Lymphatic Integumentary, Nervous, and Circulatory

Memory devices line mnemonic devices can be helpful when memorizing lists.

Law conservation mass word problems.
In the video, I show two types of law of conservation word problems. The first problem involves counting atoms and the second problem involves finding the mass of the reactants and the products.
Example problem:
How much oxygen would add with 36g of carbon to give 136g of carbon dioxide?

Malleability and Ductility-- Malleability and Ductility
Malleability is the ability of an object to be hammered into shapes.
Most metals are malleable.
Copper, gold, and silver are very malleable.
Ductility is the ability of an object to be stretched into wires.
Ductility and malleability are physical properties.

In this video, I show real-world examples of alleles.
An allele is different forms of the same gene which results in traits that look different.

A trait is a characteristic that can be passed from one generation to another.

The different forms of the same gene are the alleles
How about a couple more real-life examples

Eye color would be the trait
The different color of eyes would be the alleles

The trait is having hair

Black or blonde hair color

Your height is the trait
If you are Six feet or five feet tall

Allele different forms of the same trait.

The cell membrane surrounds the cell and protects the cell, communicates with other cells, and controls what enters and exits the cell.
The cell membrane is made of phospholipids which have a polar and nonpolar end.
The cell membrane also has proteins and carbohydrates.
In this video, I cover what the cell membrane is made of and the structure and function of the cell membrane.

Let's learn about an important yet often overlooked organelle called the cytoskeleton.
As the name implies it is the skeleton of the cell. the cytoskeleton of a cell is a network of filaments running throughout the cell. The cytoskeleton has several different jobs in the cell It helps provide support much like your skeleton provides support It provides tracks or highways for the movement of vesicles and other objects in the cell helps pull the chromosomes apart during mitosis and even helps the cell move. Some single-cell organisms move using cilia made up of cytoskeleton filament.

What are diatoms?
Diatoms are a major group of algae and are among the most common types of phytoplankton.

Diatoms are unicellular organism, although they can form colonies
They have cell walls made of glass

Diatoms belong to kingdom Protista

There are at least 100,000 species of diatoms have been discovered,
Diatoms exist in large numbers in most bodies of water throughout the world. In fact, just one quart of seawater can contain millions of diatoms
They are primary producers and create and are a very large food source in the ocean


Diatoms are autotrophs and produce energy by photosynthesis.As a result,, diatoms need sunlight, carbon dioxide, and water. They are found in the ocean, fresh water, and even moist topsoil

Many Diatoms are microscopic, but some measure a millimeter across.

Diatoms contribute enormous amounts of oxygen to our atmosphere.

Two basic forms of these organisms exist. They are known as Centrales Centrales have radial symmetry and are most often found in oceans and are wheel-shaped. They can be found drifting near the surface, sunlight and absorbing nutrients.Pennales tend to be elongated

Many Pennales live in fresh water streams, swamps, ditches, or on the bottoms of shallow regions of oceans and estuaries.

You may also enjoy....
Plankton
https://www.youtube.com/watch?v=0NiiJ7X322U&t=20s

Learn how compression and tension create mountains and mid-ocean ridges and trenches.
Compression is stress that squeezes an object.
Tension stretches an object.

Acceleration is the measure of the change in velocity over time. The change in velocity can be a change in speed, direction or both.

The formula for average acceleration is
Final velocity-Initial Velocity over Time it takes to change

Acceleration is expressed in meters per second squared

The cytoplasm is the fluid found in cells.
Cytoplasm is found in eukaryotic and prokaryotic cells.
The fluid of cytoplasm is called cytosol. It is made up mainly of water
The organelles are found floating in this liquid along with many other items
You can almost think of the cytoplasm as a crowded swimming pool

In this video learn the difference between evaporation and condensation.