Gravity depends on mass and distance and is an attraction between objects with mass.

A spider looks like an insect, but a spider is not considered an insect.
A spider is an arachnid and is similar to an insect but also different.
Spiders have two body regions, eight legs, no wings or antennae compared to insects.
Are spiders bugs? No, but they have several similar characteristics

Divergent plate boundaries occur when two tectonic plates move away from one another.
Divergent plate boundaries are considered constructive boundaries.
If you look at a map of the major tectonic plates you can see several divergent plate boundaries.
There are two major types of divergent boundaries.
Continental and continental lithosphere and oceanic and oceanic lithosphere.
An example of an oceanic and oceanic divergent boundary is the mid-ocean ridge.
The mid-ocean ridge runs around the world including going right through Ice land.
A famous example of a continental and continental divergent boundary is the African rift valley.

Ecological Succession occurs when an ecosystem has a disturbance and must regrow. Succession is all about change.
There are two main types of succession, primary and secondary.
Primary occurs when an area has been almost destroyed and little life or soil remains.
Pioneer species are the first plants to regrow.
Secondary succession occurs where you have a disturbance but the soil remains.

When the earth or moon fall between the sun and one another shadows are created. In this video, I demonstrate what an umbra, penumbra and an umbra look like.
The umbra is the darkest portion of a shadow.
The prenumbra is the lighter edges of a shadow.
The antumbra is the shadow created at the end of the umbra

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Phylum Cnidaria This phylum is famous for having stinging cells. Jellyfish and sea anemones are phylum cnidaria examples.
Phylum cnidaria characteristics include stinging cells, symmetry, and are all invertebrates.
Keywords: cnidaria biology sponge porifera 15
evolution animalia species
anemone coral polyp medusa
jellies stinging animals
classification cnidarian
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The phylum cnidaria
https://www.youtube.com/watch?v=AjM-WOeM3uA

Cnidarian classification
https://www.youtube.com/watch?v=f4h77EptlW4

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For more Life Science videos and summaries see,
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Excretory system
The excretory system removes waste and toxins from the human body.
Your skin eliminates waste by sweating.
Your lungs eliminate carbon dioxide.
Your kidneys filter over 180 liters of blood in order to produce urine.
The kidneys filter waste like urea. This liquid that is collected is called urine.
Your kidneys are made up of millions of filtering units called nephrons.

The Law of Conversation of Mass states that the mass of the reactants must equal the mass of the products in all chemical reactions.
I use a simple demonstration to show this point. I use baking soda and vinegar which is a simple chemical reaction, to demonstrate the law of conservation.
Correction:
0:41 I accidentally said grams instead of ounces while weighing the materials. My mistake.

Transverse waves are waves in which the oscillation is at a right angle to the direction of the wave.
A transverse wave has a crest, trough, wavelength, resting point, wavelength, and frequency.
The following is a quick summary of the video.
http://www.moomoomathblog.com/

As a cell moves from interphase into mitosis sister chromatids are created along with homologous chromosomes.

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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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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-

In this video, I answer the question " What are adaptations? " Adaptations are traits that increase or decrease the fitness of an organism. In other words, adaptations either help or hinder the ability of an organism to survive. Adaptations are genetically controlled and therefore can be passed on to successive generations.
Let’s take a look at some examples of adaptations from different types of organisms.

Transcript
http://www.moomoomathblog.com/....2021/02/adaptations-

Biology MineralsIn this video I will discuss 15 important minerals of the human body. A mineral is an inorganic nutrient which means it lacks carbon. Minerals build cells, take part in chemical reactions, send nerve impulses, and carry oxygen. Your body cannot produce any of the minerals that it needs. Instead, you must get minerals from the foods you eat.
Minerals are one of the four groups of essential nutrients, the others of which are vitamins, essential fatty acids, and essential amino acids.
Macrominerals are used in large quantities
Trace minerals are used in very small amounts
List of 15 minerals covered
Potassium
Chlorine
Manganese
Copper
Iodine
Chromium
Molybdenum
Selenium
Cobalt

Middle School Tips
Middle School Survival Guide You can survive middle school and actually enjoy it.
Here are ten tasks you should do that I have learned from 25 years of teaching middle school that will help you in these middle grades.
These tips will help you improve your grades and my straight-A students practice most of these strategies.
The 10 strategies for not only surviving middle school but having success in school
1. Use an agenda daily
2. Learn to plan ahead
3. Learn memory hacks
Here is a video that is a good starting point for memory hacks
https://www.youtube.com/watch?v=q7cPj7lSKo8
4. Pick good friends
5. Set goals
6. Always turn in your homework
7. Exercise
8. Get enough sleep
9. Read 7 Habits Highly Effective Teens
10. Be nice
More Information
http://www.moomoomathblog.com/....2020/07/middle-schoo
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What is Carrying Capacity? The carrying capacity is the maximum number of a species that an environment can support.

The maximum number of individuals in a species that an environment can support for the long term is the carrying capacity. Carrying capacity is limited by the limiting factors. These factors may include food, water, shelter, appropriate space, as well as disease, predation, and climatic conditions
If a population nears the carrying capacity. resources become limited and if a population exceeds the carrying capacity deaths began to outnumber births

Steps of cellular respiration
All organisms use respiration in order to produce energy.
In this video I review the basics of cellular respiration.
Welcome to MooMooMath
All living organisms practice cellular respiration.
This includes bacteria,fungi,plants, and animals
Why is cellular respiration important?
Because living organisms generate energy with cellular respiration
In plants and animals cellular respiration takes place at the mitochondria.

Think of the mitochondria as the power plant of the cell because the energy of the cell is generated at the mitochondria
Just like these powerplants and turbines generate power for their city.

Cells that need more energy have more mitochondria like muscles

At the mitochondria sugar combines with oxygen to produce carbon dioxide plus water and energy in the energy in the form of atp
Thanks for watching
MooMooMath uploads a new video everyday

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Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"
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For more Life Science videos and summaries see,
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If you live in the united states,canada, or Australia, you use a 12 hour system for telling time.
If you look at this clock it is 7 oclock. However is this 7 oclock in the morning or 7 oclock at night. This is where am and pm help
.The 12-hour system divides the 24 hours of a day into two periods lasting 12 hours each. The first 12-hour period is designated as am. It runs from midnight to noon. The second period, marked pm, covers the 12 hours from noon to midnight.
AM comes from the latin phrase ante meridiem, which translates to, before midday)
and p.m. from the Latin phrase post meridiem which translates to, past midday
There are 24 hours in a day, this requires the hour hand to pass the 12 twice.

Learn how to read a dichotomous key which is used in classification in order to help identify objects.
In this example, I classify 3 monsters. The first thing to remember is to always start at 1A with each new object that you are classifying. Because each question has two parts you should always start at the A question and then the question will tell you where to go next.

Why do animals like insects, fish, zebras, and even Zooplankton migrate?
Animal migration is the periodic journey of an animal from one place to another and then back again. There are many examples of animals that migrate. Geese are one example. Geese migrate in search of favorable weather, a place to breed, and a food supply. In just 24 hours, these birds can travel 2,214 kilometers from Canada to the southern U.S. or vice versa.

For more information on Migration
http://www.moomoomathblog.com/....2021/03/animal-migra