Learn about the arctic and alpine tundra.
The tundra is a very cold and dry biome.The arctic tundra is found in North America, Asia, and Europe and circles the arctic ocean and stretches southward down to the taiga.The alpine tundra occurs at any latitude and is found at high elevations of 10,000 feet and
above.
The alpine tundra is found above the tree line and does not have any trees
Because of the high elevation, the alpine tundra has a climate and rainfall similar to the arctic tundra.

Confused about Science variables? In this video, I use 5 experiments in order to help you gain an understanding of Science variables. For example, which car cooler is the coolest temperature in the summer. The different colors are your independent variable and what you are measuring which is temperature is your dependent variable. Your control variables would be same location, measuring the temperature the same way.
Does eating bananas lower your blood pressure? What would be your variables in this experiment?

Cenozoic EraIn this video I would like to talk about the Cenozoic era on the geologic time scale.
The Cenozoic era is the most recent era and is part of the Phanerozoic Eon along with the Paleozoic and Mesozoic eras.
The Cenozoic era lasted roughly 65 million years.
The Cenozoic era is most often described as the “ age of mammals” but could also be called the
“Age of flowering plants” or the age of insects.
Let’s hit several highlights of this era
Although the first mammals appear in the Mesozoic era they begin to thrive during the Cenozoic era and spread throughout the world.
Birds become more diverse and becoming more diverse.
In addition flowering plants also begin to thrive and spread to all corners of the Earth
Along with insects.
Apes and Humans also appear
During this era, the Earth is cooler and ice ages occur and the formation of glaciers.
In addition, the continents have moved into their modern location and several mountain ranges including the Alps, Himalayas, and the Rocky mountains

In this video I cover different types of graphs and when they should be used.
For example, a bar graph is best or putting numbers in categories..

A Circle Graph is best to show different parts of the whole.
A Double bar Graph
can be used when you have two or more sets of data.
A Box Whiskers Plot is great to measures of variation
A histogram can show the frequency of data divided into intervals
A line Graph can graph change over time.
A line Plot can be used to show the frequency data on a number line

Video Guide
00:00 Introduction to types of graphs
1:01 When to use a Bar Graph
1:14 Line Graph can show data over time
1:26 A Circle graph shows parts of a whole.
1:43 Double bar graph is used to compare objects
2:03 When to use a histogram.
2:28 When to use a box and whiskers plot. It is helpful to show variation.
2:48 When to use a line plot.

Ocean stratification results when ocean water with different densities forms layers due to their properties. In this video, I show how differences in salinity can create ocean stratification which may result in ocean currents.
In the salinity demonstration, I have a container divided into two halves. On one side I have fresh water and the other I have very salty water. The two types of water are separated by a divider. When I lift the divider the salty water flows under the warm water and creates a current.

Learn how to calculate the volume of a hemisphere. You basically take the formula for the volume of a sphere and divide it by 2. The formula for volume is 4/3 pi radius cubed.

Learn how to calculate the surface area of a square pyramid.

Learn how to write an equation f a line using y = mx+ b and this will allow you to write the equation slope intercept form.

Learn how to find the area of a sector which is similar to a pizza. The formula for finding the area of a sector equals the measure of the angle over 360 times pi radius squared.
m/360*πr2
The most common sector is a semi-circle which divides a circle in half.

Find the cube root of 8 and 27 without a calculator.

Learn how to simplify 4th roots. Complete a factor tree and find groups of 4 in order to pull out numbers from the radical symbol

What are the factors that allow the Earth to sustain life?
Life has been around for a long time. How does the earth help life on earth keep going and going and going.
I would like to look at three processes and one force that work together to help sustain life.
First, life is sustained by the flow of energy from the sun through the biosphere.
The biosphere is any location on earth that has life.
Plants contain chloroplasts which have the ability to convert sunlight into sugar.
Plants combine carbon dioxide, water and sunlight into glucose.
Animals eat plants and the energy from the sun is transferred to the animal.
Other animals eat these animals and the energy from the sun is spread throughout the ecosystem
The next process is the cycling of nutrients within the biosphere.
The earth has several biochemical cycles that recycle important chemicals
These cycles move chemical substance from the biotic and abiotic compartments of Earth. There are biogeochemical cycles for carbon, oxygen, nitrogen, phosphorus, sulfur, and water;
These cycles keep recycling these important chemicals so that we don’t run out of these chemicals.
Life has the ability to duplicate itself. It can be the offspring of two adults or bacteria that uses binary fission to rapidly make copies of itself.
Finally, gravity is the force of attraction between objects.
Gravity hold life on earth and also holds our atmosphere close to the earth.
The atmosphere contains important gases like oxygen which are essential to life.
Without gravity, the earth would not have an atmosphere and life as we know it would go away.
So there you go,
How life keeps going and going and going