The water rises, cools, and condenses. A cloud is formed! Clouds form when warm wet air rises and condenses in cold air. The second reason that clouds can float in the air is that there is a constant flow of warm air rising to meet the cloud: the warm air pushes up on the cloud and keeps it afloat.
Snow and hail is a solid, sleet has solids within a liquid mass, and rain is liquid. Snow is water that crystallizes when the temperature gets below freezing. Sleet is when the temperature freezes, but then as it falls from the clouds it partially melts. Clouds actually contain 2 states of matter, solid and gas.
The Sun is our nearest star. It is, as all stars are, a hot ball of gas made up mostly of Hydrogen. The Sun is so hot that most of the gas is actually plasma, the fourth state of matter. As we heat up liquid, the liquid turns to gas.
Fire doesn't fall into gas, because it doesn't expand in the same way gas does. Fire doesn't fall into liquid, because it doesn't have a fixed volume. Fire doesn't fall into solid, because it doesn't have a fixed shape. Thus, fire is currently considered a plasma.
Fog shows up when water vapor, or water in its gaseous form, condenses. During condensation, molecules of water vapor combine to make tiny liquid water droplets that hang in the air. You can see fog because of these tiny water droplets. Water vapor, a gas, is invisible.
Clouds consist of microscopic droplets of liquid water (warm clouds), tiny crystals of ice (cold clouds), or both (mixed phase clouds). Cloud droplets initially form by the condensation of water vapor onto condensation nuclei when the supersaturation of air exceeds a critical value according to Köhler theory.
Clouds are white because light from the Sun is white. As light passes through a cloud, it interacts with the water droplets, which are much bigger than the atmospheric particles that exist in the sky. But in a cloud, sunlight is scattered by much larger water droplets.
The cloud that you see is a mixture of solids and liquids. The liquid is water and the solids are ice, cloud condensation nuclei and ice condensation nuclei (tiny particulates that water and ice condense on). The invisible part of clouds that you cannot see is water vapor and dry air.
Light is a form of energy, not matter. Matter is made up of atoms. Light is actually electromagnetic radiation. Moving electric charge or moving electrons (electric current) cause a magnetic field, and a changing magnetic field creates an electric current or electric field.
So in conclusion, we know air exists because first of all, we breathe it everyday and its necessary for most things living on this earth. You can prove air exists by blowing up a balloon. By doing this, it proves that air has weight and air takes up space. Lastly, air is just made up of mainly nitrogen and oxygen.
A glass holds H20 in three states of matter: ice (solid), water (liquid) and vapor (gas). Matter is the "stuff" that makes up the universe — everything that takes up space and has mass is matter.
But, like solids and liquids, air is matter. It has weight (more than we might imagine), it takes up space, and it is composed of particles too small and too spread apart to see. Air, a mixture of gases, shares properties with water vapor, the gaseous form of water that is part of air.
Matter is anything that has mass and occupies space. The flame itself is a mixture of gases (vaporized fuel, oxygen, carbon dioxide, carbon monoxide, water vapor, and many other things) and so is matter. The light produced by the flame is energy, not matter.
Smoke, smog, and laughing gas are matter. Energy, light, and sound, however, are not matter; ideas and emotions are also not matter. The mass of an object is the quantity of matter it contains.
Air is a mixture of many gases and dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. Air is a mixture of about 78% of nitrogen, 21% of oxygen, 0.9% of argon, 0.04% of carbon dioxide, and very small amounts of other gases.
All matter is made from atoms. Oxygen and nitrogen are the major components of air and occur in nature as diatomic (two atom) molecules. Regardless of the type of molecule, matter normally exists as either a solid, a liquid, or a gas. We call this property of matter the phase of the matter.
The bent Old Woman glared at the Sky and scrubbed the splodgy raindrop away. But then another raindrop fell, and another, till her swept and scrubbed front step was blotchy with raindrops. This was more than the bent Old Woman could bear. So that is why the Sky is so high.
The sky (also sometimes called celestial dome) is everything that lies above the surface of the Earth, including the atmosphere and outer space. In the field of astronomy, the sky is also called the celestial sphere. At night, the Moon, planets, and stars are similarly visible in the sky.
Purple skies mean different things. Usually it means a storm is coming, or it's just an odd quirk of the sun setting, but some people believe it has a different, more spiritual meaning. Some people think it means death is close, or that a lot of people somewhere died.
In a nutshell, the molecules in the atmosphere scatters light in all directions. There's plenty of light in space. There is light in space. But you can't see light when it's in space, you can only see light when it's inside your eye.
Space is full of light, but it doesn't look like it. The color black usually signals the absence of light. But inside the solar system, space is filled with light.
Of course we can see stars in space. We see stars more clearly from space than we do from Earth, which is why space telescopes are so useful. Even in space the stars aren't overly bright, and our eyes can lose dark adaption pretty quickly. NASA An image from the ISS of stars and glowing layers of Earth's atmosphere.
Using satellite data, two atmospheric scientists from the Toronto institution suggest that the bright nights are not due to the sun or meteors, but instead the result of converging “zonal waves” in Earth's upper atmosphere. Accounts of the phenomenon are sprinkled throughout history.
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 as shorter, smaller waves. This is why we see a blue sky most of the time. Closer to the horizon, the sky fades to a lighter blue or white.
The movement of air (sometimes called turbulence) in the atmosphere of Earth causes the starlight to get slightly bent as it travels from the distant star through the atmosphere down to us on the ground. To our eyes, this makes the star seem to twinkle.
Thunder is the sound generated by lightning produced by a sudden and violent expansion of super-heated air in and along the electrical discharge channel path. Thunder can be a sharp or rumbling sound. The intensity and type of sound depends upon atmospheric conditions and distance between lightning and the listener.
At that high temperature the lightning column is a plasma, a gas with many of its atoms broken into electrically-charged particles, both negatively-charged electrons and positively-charged ions. Lightning arises from electrical charges residing on soft hail and ice crystals that move about in the air.
Lightning is an electric current. Within a thundercloud way up in the sky, many small bits of ice (frozen raindrops) bump into each other as they move around in the air. All of those collisions create an electric charge. After a while, the whole cloud fills up with electrical charges.
Wind is not matter. The definition of “wind” is the movement of air. Whereas the air itself is matter, wind is the force against the matter.
Lightning happens when the negative charges (electrons) in the bottom of the cloud are attracted to the positive charges (protons) in the ground.
It's none of those! Electricity is a force. Charged particles (like electrons) are pulled and pushed around by the force of electricity. Streams of charged particles can flow through solids (like electrical wires), liquids (I can't think of a good example, but they can!) or gases (like lightning).
Solid water—ice is frozen water. When water freezes, its molecules move farther apart, making ice less dense than water. This means that ice will be lighter than the same volume of water, and so ice will float in water. Water freezes at 0° Celsius, 32° Fahrenheit. Liquid water is wet and fluid.
