Space and Earth Facts!

• The sun is over 300,000 times larger than earth .
• Because of gravity, a person who weights 100 pounds on earth would only weight 38 pounds on the surface of mars.
• Scientists have dated the earth to be between 4 to 5 billion years old!
• Natural gas doesn't have a smell, strong smells are added to it by humans so they can detect it ( like propane, gasoline,diesel, etc.).

Why Do People Snore?

The palate, uvula and tonsils are the tissue structures that flap against each other when someone has too much tissues at the back of thier mouth or when an odstruction is blocking that air passageway to the back of the throat.

• poor muscle tone in the tongue and throat.
• Excessive bulkiness of throat tissue
• Long soft palata and or uvula tissue in the back mouth
• Odstructed nasal airways

Why Do You Hear Ocean Sounds In a Shell?

Seashells do not really make any sound of their own. Inside they have many hard curved surfaces, which are good reflectors for sound. So any sound waves that get inside are jumbled up by all kinds of echoes. When you hold the shell up to your ear, you hear the noise of all those jumbled-up echoes. That does sound much like the noise of ocean waves beating against a shore.

Why Do You Feel Dizzy When You Spin?

Inside your ears are tubes filled with liquid. The liquid moves when you move, telling your brain what position your body is in. When you spin, the liquid also spins. The liquid continues to spin after you stop. Your brain thinks you’re still spinning, so you continue to feel that everything is going in circles-until the liquid stops moving. 

What Makes Stars Twinkle?

We see the stars through the the air bubble that is surrounding the earth. Their light passes through millions of miles of constantly moving pockets and streams of air, which changes the image of the stars. Even though many stars are much larger than planets, they're so far away from us that they seem smaller, like tiny dots. The distortions make it seem as if the shining lights are moving or blinking. In outer space, where there is no atmosphere, stars don't twinkle

Why Is The Sky Blue?

The light from the sun looks white. But it is really made up of all the colors of the rainbow.
Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels in shorter and smaller waves. This is why we see a blue sky most of the time.                                       

How Can Fish Breathe Underwater?

In many ways the inside of a fish is practically the same as throughout all kinds of fish. The only thing that makes a fish different is there respiratory system. Fish evolved not having to make frequent trips to the surface to get air, like marine mammals. So instead they have developed gills on which they rely on to get oxygen for their limited metabolism. Fish use their gills to extract the oxygen from their watery environments. How it works is the fish has to open their mouth and the operculum closes the mouth which allows water to flow into the mouth pumping water through the gills thus makes it breathe. There are other fish that don’t really have this unique capability; they instead have to constantly swim in order to create oxygen. Once the water is in the mouth it continues to the gill rakers. Gill rakers are a filtering system for the gills, which pump out any food materials. After that is done the water leads itself to the gill arches, which are suspended between the mouth cavity and the operculum. Each gill is made up of little gill filaments, which are extremely thin membranes poking out into the water flow. Each of the gill filaments are layers with rows upon rows of lamellae. The water flows across the lamellae, and oxygen and carbon dioxide are exchange directly across the capillary membrane. Fish are very talented; they can extract 85% of the oxygen that is in the water, but there is actually 2-5% of oxygen actually in it. It’s funny because some fish have nostrils, but those are only used to smell and play no role in the respiration.