The material changes its appearance. However, it can easily be changed back to what it started as.

The material or materials that we start with cannot be changed back after the change and the change cannot be undone, the starting materials change into new materials

is a material made up of two or more different substances which are physically combined

has the same uniform appearance and composition throughout

Many homogeneous mixtures are commonly referred to as ______________

consists of visibly different substances or phases and All components of the mixture is visible because they do not mix together

Can be used to separate magnetic materials from those that are not attracted by magnets used in food processing and salvaging scrap iron and steel

Used to separate an insoluble solid from a solid-liquid mixture

Used to separate a dissolved solid from a solid-liquid mixture

Used to separate a pure liquid from a solid-liquid or liquid-liquid mixture

Used to separate small amounts of mixtures and is used to identify the contents of a mixture or to test the purity of a liquid

physically separate parts of a mixture using your fingers

use a sieve or sifter to separate larger solids from smaller ones

pouring off a less dense top liquid layer

is the process that occurs when a solute is added to a solvent and the solute disappears.

it can be dissolved, most commonly in water.

is a substance (solid) that will not dissolve in a solvent even after mixing

s a substance that dissolves the solute. It is usually liquid but can also be a solid, a gas, or a supercritical fluid.

is a substance that can be dissolved by a solvent to create a solution

Factors affecting solubility

the quantity of a substance dissolved in another substance

how quickly a solute dissolve in a solvent

is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body.

refers to the release of pollutants into the air that are detrimental to human health and the planet as a whole.

or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.

is one of the most important substances on earth. All plants and animals must have _________ to survive.

occurs when more water and fluids leave the body than enter it. Even low levels of _________ can cause headaches, lethargy, and constipation. The human body is roughly 75 percent water.

is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.

is the lowest layer of our atmosphere. We humans live in the _____________, and nearly all weather occurs in this lowest layer.

Commercial passenger jets fly in the lower stratosphere, partly because this less-turbulent layer provides a smoother ride. The infamous ozone layer is found within here

most meteors burn up in this layer

Many satellites orbits Earth within this layer

is the farthest point from earth that is still affected by earth's gravity

refers to a group of similar organisms that are able to reproduce.

land that is partly or completely covered with grass, trees, shrubs, or other vegetation and They provide habitats for animals, and these animals have their own food chains.

is the place where living things live.

refers to the variety of life. It is seen in the number of species in an ecosystem or on the entire Earth.

is the permanent removal of trees to make room for something besides forest. This can include clearing the land for agriculture or grazing, or using the timber for fuel, construction or manufacturing.

Coal, oil and gas are examples of _______________ and can be burned to release energy. They are found below the surface of the Earth and are formed under the surface of the Earth over millions of years, like fossils

is useful energy that is collected from renewable resources, which are naturally replenished on a human timescale, including carbon neutral sources like sunlight, wind, rain, tides, waves, and geothermal heat.

is a natural resource that cannot be readily replaced by natural means at a quick enough pace to keep up with consumption.

Resources provided by nature

Resources made by human beings

is any substance which is discarded after primary use, or is worthless, defective and of no use.

is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept.

is a site for the disposal of waste materials.

is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.

also known as closed loop recycling, is the process of turning one thing into more of the same thing, like paper into more paper or soda cans into more soda cans.

means turning something into other things made of the same material in essentially the same form.

Do you understand everything in this set? is it good?