What makes an arachnids an arachnid? Spiders and mites are examples of arachnids. First arachnids are arthropods and in addition, they have 8 legs, no antennae, and no wings.
Spiders are arachnids and come in a variety of sizes and shapes.
Spiders are not insects, but instead, they are Arachnids.
Although a spider and insect have many of the same traits spiders have only two body segments and eight legs instead of six.

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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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

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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

Learn how to find the slope from a graph. The slope can also be called the gradient of the line.The slope is a measure of the rate of change of a line or the steepness of a line. The slope is represented by the letter m
Using a graph you can calculate the slope by using rise over run. The rise will be how the line changes vertically and the run is the change in the x-axis or horizontal change.
You may enjoy ...
Understanding Slope
https://youtu.be/vbfFwTmzHGQ

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 to tell time on a clock that has three hands. The hands represent the hour, minute, and seconds.
There are 24 hours in a day
60 minutes in an hour
60 seconds in a minute

Use these 5 steps in order to make reading time easy
Step 1 start at the small hand look where the hour hand is pointing and write this number down.
Step 2 Draw two dots
Step 3 Read the large hand
Step 4 Draw two dots
Step 5 Read the skinny hand the seconds

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.

Learn how to add and subtract using scientific notation

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
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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.

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.

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