Hydrostatic skeleton
Worms and Jellyfish have an internal skeleton created from a fluid called a hydrostatic skeleton.
An internal cavity called a coelom fills with fluid and basically inflated the animal.
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For more Life Science videos and summaries see,
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The exterior angles of a polygon are angles drawn from an adjacent side. The exterior angles also add up to 360 degrees.The interior and exterior angles add to 180 degrees.

Learn how to round decimals properly. The problem is it is hard to remember if you should round up or down.You can use
Four and below let it go
Five and above give it a shove
Round .15 to the tenth place
Round .8534 to the nearest hundreth

For more Math help visit our website
http://www.moomoomath.com/

An introduction to heating and cooling curve. In this video, I introduce heating and cooling curves and show the location of phase changes.

" A typical heating curve for a substance depicts changes in temperature that result as the substance absorbs increasing amounts of heat. Plateaus in the curve (regions of constant temperature) are exhibited when the substance undergoes phase transitions."

Standard SPS7.d. Analyze and interpret data to explain the flow of energy during phase changes using heating/cooling curves.

00:00 Introduction Heating Cooling Curves
00:15 Heating Curve Explained
01:33 Kinetic and Potential Energy on Heating Curve
01:44 Cooling Curve
01:56 Kinetic and Potential Energy on

Perfect squares 1-25 Memorize the perfect squares with a simple song.
Transcript and lyrics here
http://www.moomoomathblog.com/....2020/03/perfect-squa

The earth has an abundance of water, and even appears blue from space. However, only a small percentage of the water on Earth is freshwater and much of this freshwater is either frozen or unattainable.n other words, freshwater only makes up roughly 3% of all of the water on Earth You will find the bulk of freshwater in these 4 main sources.

Surface waters ( Lakes, Rivers, Streams, Ponds, Swamps, marshes)

Glaciers and IceCaps

Groundwater ( Shallow and Deep)

Atmosphere

Learn how to solve percent of videos. In this video I solve,
80% of what number is 12.
In order to solve this video you can use the formula is over of equal percent over 100

Learn how to find mean, median, mode, and range with a frequency table. A frequency table organizes data so finding the range is easy. For the range just subtract the smallest from the largest number.
The mode is the number that appears most often.
The median is the number in the middle and the mean is the average.
I show you how to find each of these statistics easily from a frequency table.

Balancing Chemical Equations the easy way-- Learn how to balance basic chemical equations.
The easy method for balancing equatons is to draw a line from the arrow,
Next list the elements involved in starting with the metals and then non-metals, then oxygen, then hydrogen.
Now, start balancing the metals first and work down the list of elements.
Another helpful hint, if you just can't seem to balance the equation, stop and double check the number of atoms you counted at the beginning and start over from the metals.

Counting Atoms
https://www.youtube.com/watch?v=fVcJqund5u8

Voluntary and Involuntary muscles
Our muscular system allows us to move inside and outside.
Humans have an amazing range of movement.

There are two major types of muscular movement.
Voluntary and involuntary

Let’s look at the typing to help understand the difference between voluntary and involuntary muscles.

When we control the muscles in the hands and arms and tell the muscles which keys to press, these movements would be considered voluntary
At the same time, cardiac muscles of the heart, and muscles that help you breathe are working automatically to keep you alive..
These muscle movements are involuntary.

The motor cortex is the region of the cerebral cortex involved in the planning, control, and execution of voluntary movements.
Your brain sends signals down the central nervous system and then the peripheral nervous system to stimulate muscle movement.

Involuntary muscles run automatically. There are two major types.
Our smooth muscles and our cardiac or heart muscle.

Involuntary muscles are controlled in the medulla oblongata which is located in the brainstem,
This portion of the brain controls involuntary movements such as breathing, digestion, heart rate, and more.
In summary, muscles we can control are voluntary
and our automatic muscles are involuntary muscles.

Learn how to factor expression in Algebra.
First, find the greatest common factor.
Check your answer using the distributive property
Example problem 10n + 15
8y-12y


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Learn how to combine like terms in Algebra
For more Math help visit our website
http://www.moomoomath.com/

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.

Igneous Rocks are created from molten rock that is either on the surface (lava) or inside the Earth ( magma)

Learn howexercise benefits your body.
Exercise helps your brain, helps on the cellular level, the respiratory, and your circulatory system.

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Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"
https://www.youtube.com/watch?v=f3bsg8gaSbw
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For more Life Science videos and summaries see,
http://www.moomoomath.com/Midd....le-School-Science-an

Transparent material allows visible light to pass through it. Some of the light may be absorbed, but it is possible to see objects through the material.
Translucent materials allow some light through them but it is scattered so it is impossible to see a clear image through the material.
Opaque materials don't let light through them at all. The light is either reflected or absorbed.
Transcript
http://www.moomoomathblog.com/....2020/08/transparent-

Bill Gates has a net worth of around 93,000,000,000 dollars.
This is a large number to write.
A nanometer is 1/ billionth of a meter which is written as 0.000000001 m

Both of these numbers can be written using scientific notation.
Bill Gates net worth could be written as 9.3 x 10^10
A nanometer can be written as 1.0 x 10^-9
Lets go over the basics of scientific notation

9.3 x 10^8
The coefficient must be between 1 and 10
The exponent should be an integer and can be positive of negative

If you have to move the decimal to the left , the exponent will be positive
If you have to move the decimal to the right the exponent will be negative

530,000 5.3×10^5
First example. In this example we do not have a decimal so you can assume it is after the last zero. The coefficient must be between 1 and 10 so we need to move the decimal five places to the left because 5.3 is between 1 and 10
The exponent will be positive so it will be written as 5.3 x 10 5

.00078 x 10^-4

In this example in order for the coefficient to be between 1 and 10 we need to move the decimal four places to the right 7.8 is between 1 and 10
We need to move the decimal to the right so the exponent will be negative

The scientific notation will equal 7.8 x 10^ -4

Learn all about our Global winds. These include the Polar Easterlies, the Westerlies, and the trade winds.
Global winds are created from the unequal heating of the Earth and the Coriolis effect.
At some locations on Earth, there are locations of little wind. At the equator, you will find the Doldrums and at 30 degrees north and south you will find the Horse latitudes.

Global Winds
https://moomoomath.com/global-winds/

Periodic Table Basics Learn how to use information from the periodic table to find the number of protons, neutrons, and electrons of an element. The atomic number tells you the number of protons. The electrons can be found using the atomic number minus the charge and the atomic mass can be used to find the neutrons.

You may enjoy ..
Ions and the Periodic Table
https://youtu.be/4gT3G6LKYAo

What are the four factors that affect the rate of reaction within a chemical reaction?
There are four factors that impact the rate of a reaction.
Temperature, Concentration, Surface area, Inhibitors, and Catalysts.

0:00 Introduction Rates of Reaction
0:28 Activation Energy
0:52 Factors that impact the rate of reaction
1:09 Temperature
1:27 Concentration
1:49 Surface Area
2:12 Inhibitors Corrosive, Enzyme, Rection
2:40 Catalyst

Transcript
http://www.moomoomathblog.com/....2021/11/rates-of-rea