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.

In this video, you will learn about transport across the cell membrane. I cover active and passive transport, diffusion, osmosis, and endocytosis and exocytosis.
Passive transport involves diffusion and osmosis and does not require energy. Objects move from a high concentration to a low concentration.
Active transport requires energy.
I answer questions like, is facilitated diffusion active or passive transport.

Why is Venus the hottest planet? Venus is a terrestrial planet and is the second closest planet to the sun. It would seem logical that Mercury the closest planet to the sun would be the hottest of all of the planets. Mercury is very hot with high temperatures of + 840 °F (+ 449°C) but also on the side of Mercury facing away from the sun it gets very cold - 275 °F (- 170°C) This is because Mercury has a very thin atmosphere and cannot trap in the heat. The thin atmosphere is similar to you wearing shorts and a t-shirt at the beach. The heat is not trapped next to your skin.
Venus, on the other hand, has temperatures of + 870 °F (+ 465°C)
This is hot, hot, hot. Remember, water boils at 212 degrees Fahrenheit, 100 Celcius and lead melts at 621 Fahrenheit 327 celsius
Why is Venus so hot. First, it is the second closest planet to the sun.
Venus is 0.723 AU 67.2 million miles 108.2 million km from the sun compared to
Earth which 1 AU 93 million miles 149.6 million km
This alone causes Venus to be hot. However, it is hotter than Mercury. The atmosphere of Venus is made up almost completely of carbon dioxide. It also includes small doses of nitrogen and clouds of sulfuric acid. The atmosphere is so thick on the surface it would feel 90 times heavier than Earth's atmosphere. The surface pressures are similar to diving 3,000 feet beneath the ocean. This thick atmosphere traps in the heat close to the surface in the same way a thick jacket traps heat next to your skin.

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.

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

The Pythagorean theorem can be used to calculate distance if a right triangle is created.
The Pythagorean theorem states that a squared plus b squared equals c squared. This very similar to the distance formula.

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.

Learn how to add and subtract using scientific notation

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

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.

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)