Your metabolism is the sum of all chemical reactions in your body.

Sir Isaac Newton—who lived in the 1600’s developed 3 laws to describe all states of motion.
Law 1 or the law of Inertia states that matter wants to resist any change in motion.
A. If an object is at rest, it wants to stay at rest.
B. If an object in motion wants to stay in motion.
C. The more mass an object has, the greater the inertia it has.

These dominoes will stay at rest forever unless an outside force acts on it like this push from someones hand
D.Let’s see this law in action After the player punts the ball, due to inertia, what does the ball want to keep doing? ___Go in motion_______________________________ Why doesn’t it? ______________
__Air friction gravity other forces act on it
In order for an object to change its motion, what must happen?

Why is the car hard to push?
The car wants to stay at rest and has a larger mass than the man trying to push it.

Law 2

Based on these observations, Newton came up with a law to describe acceleration.
Newton’s 2nd Law: “The acceleration of an object depends on the force acting on it and the mass of the object

There is an equation associated with this law:

F= ma
Force = mass multiplied by acceleration

Look at this golf swing
The golf club has a high rate of acceleration and strikes the golf ball with great force

The hammer has a greater mass and acceleration than the piggy bank

Law Three

Newton’s 3rd Law of Motion --“For every action, there is an equal and opposite reaction

Look closely at this jellyfish swimming
He moves his body backward but moves forward because the water exerts a force in the opposite direction which moves the jellyfish forward

Same with the skateboard
The foot is pushing backward but the skateboard is going forward

Malleability and Ductility-- Malleability and Ductility
Malleability is the ability of an object to be hammered into shapes.
Most metals are malleable.
Copper, gold, and silver are very malleable.
Ductility is the ability of an object to be stretched into wires.
Ductility and malleability are physical properties.

In this video, I explain balanced and unbalanced forces from a physics viewpoint.
Balanced forces do not cause movement or a change in speed.
Unbalanced forces cause an object to move in the direction of the greater force.

Examples of balanced forces acting on an object

Pool balls that are balanced being struck by an unbalanced force.
Lifting weights The downward pull of gravity is balanced by the resistance force of the weight stand.
Using a car jack creates an unbalanced force upward.
A car at rest being struck by another car causes the forces to be unbalanced and movement in the direction of the force.

A simple test to see if a number is prime or composite. All you do is find the square root of the number. Next, find all the prime numbers of this number. If none of these prime numbers are a factor of the number then the number is prime.

How do thunderstorms form? In this video, I will cover the basics of these exciting storms.Here is how a thunderstorm forms
Step 1 Warm moist air is heated and begins to rise upward.
Step 2 As this warm air rises it begins to cool, condenses and begins to form clouds
Step 3 This warm air will continue to rise and will encounter cold air which will cool the moisture in the clouds and ice may form
Step 4 Eventually the cooled moisture and ice will begin to fall to the earth This action creates a downdraft
5. The updrafts continue feeding warm humid air and the falling moisture create downdrafts. This creates convection currents. You can see what convection currents look like. The warm water is in red and the cool water is blue.
These convection currents create the most violent stage of the thunderstorm
Lightning and strong winds are produced
6. Eventually the downdrafts will stop the updrafts of warm air
7 When the warm moist air is cut off the storm begins to dye off

There are three main types of thunderstorms; orographic, air mass, and frontal.

In this math lesson, you will learn how to tell time on an analog clock. In this lesson, we will focus on reading the short or hour hand and the long minute hand.
We will learn three easy steps to tell time.
Start at the small hand
Write two dots
Read the large hand.

An organ is a group of two or more tissue that works together to complete a common function.
Your body has around 78 organs.
In this video, I will cover several major organs.

The brain is the boss of your body. It runs the show and controls just about everything you do, even when you're asleep

The heart is a very strong muscle made of cardiac muscle that helps pump your blood throughout your body.

The kidneys are very important because they filter your blood and produce urine.

The spleen filters blood and acts like disease detectives. It also produces antibodies and lymphocytes which fight germs.

The Small and Large intestines are a major site of digestion. The small intestine is responsible for 90 percent of digestion. At the same time, the large intestines absorb salts, mineral, and vitamins.

The Liver Is a large organ with over 200 functions. It produces bile which helps with digestion, stores glycogen, and filters your blood to eliminate harmful bacteria and damaged cells.

The gallbladder stores the bile produced by the liver

Your stomach Is a site of digestion of the food we eat. After chewing our food it travels down the esophagus to the stomach.

The pancreas helps to regulate the blood sugar level of your body.

The skin protects us from disease,removes waste, and helps control our temperature.


Finally, the Lungs are responsible for exchanging oxygen for carbon dioxide

How are concave and convex lenses different?
A convex lens is thicker in the middle compared to the edges. It is also called a converging lens because the rays and bent together. A convex lens is also called a positive lens because of the location of the focal point.
A concave lens is thinner in the middle compared to the edges.
It is called a diverging lens because the rays of light spread out.
A concave lens also is called a negative lens because the focal point is behind the lens.