Matter MattersMatter Matters

Matter, matter everywhere Matter, matter everywhere

Except in a vacuum of Except in a vacuum of course Chemistry is the course Chemistry is the study of matter Its study of matter Its

changes and interactionschanges and interactions

What is matter?What is matter?

Does Matter, Matter?Does Matter, Matter? YWBAT:YWBAT:

Describe the different phases of matter;Describe the different phases of matter; Distinguish between physical and chemical Distinguish between physical and chemical changes;changes;

Describe the composition of matter on the atomic Describe the composition of matter on the atomic level;level;

Differentiate among elements, compounds, and Differentiate among elements, compounds, and mixtures;mixtures;

Recognize common chemical symbols, formulas;Recognize common chemical symbols, formulas; Demonstrate understanding of subscripts and Demonstrate understanding of subscripts and coefficients in simple chemical formulas;coefficients in simple chemical formulas;

Describe an ion and its role in chemical bonding;Describe an ion and its role in chemical bonding; Explain the organization of the periodic table.Explain the organization of the periodic table.

MATTER IS THE STUFF AROUND YOUMATTER IS THE STUFF AROUND YOU

Matter is everything around Matter is everything around you. Matter is everything made you. Matter is everything made of atoms and molecules. Matter of atoms and molecules. Matter is anything that has mass and is anything that has mass and takes up space. Matter is also takes up space. Matter is also related to light and related to light and electromagnetic radiation. Even electromagnetic radiation. Even though matter can be found all though matter can be found all over the universe, you usually over the universe, you usually find it in just a few forms. As of find it in just a few forms. As of 1995, scientists have identified 1995, scientists have identified five five states of matterstates of matter. They . They may discover one more by the may discover one more by the time you get old. time you get old.

STATES OF MATTERSTATES OF MATTER

There are five states or phases of matter. Solids, liquids, gases, There are five states or phases of matter. Solids, liquids, gases, plasmas, and Bose-Einstein condensates are all different states of plasmas, and Bose-Einstein condensates are all different states of matter. Elements and compounds can move from one phase to matter. Elements and compounds can move from one phase to another phase when special another phase when special physical forces (ie – temperature)physical forces (ie – temperature) are are present. Generally, as the temperature rises, matter moves to a more present. Generally, as the temperature rises, matter moves to a more active state. active state.

Physical ChangesPhysical Changes Phase describes a physical state of matter. The key word to notice is physical. Things Phase describes a physical state of matter. The key word to notice is physical. Things

only move from one phase to another by physical means. If energy is added (like only move from one phase to another by physical means. If energy is added (like increasing the temperature or increasing pressure) or if energy is taken away (like increasing the temperature or increasing pressure) or if energy is taken away (like freezing something or decreasing pressure) you have created a physical change. freezing something or decreasing pressure) you have created a physical change. Changing states of matter is about changing properties -Changing states of matter is about changing properties -densities, pressures, and densities, pressures, and temperaturestemperatures. The basic chemical structure does not change. Can happen in any . The basic chemical structure does not change. Can happen in any proportions.proportions.

Chemical ChangesChemical Changes

Chemical changes happen Chemical changes happen on a on a molecularmolecular level. It level. It involves some sort involves some sort of change in the of change in the basic chemical basic chemical structure. Energy structure. Energy is released or is released or absorbed – never absorbed – never destroyed An destroyed An example is when example is when acid is poured on acid is poured on something, and it something, and it dissolves.dissolves.

                                                                 Elements and compounds can move from one

Back to Physical ChangesBack to Physical Changes

Remember that Remember that when a physical when a physical change occurs, change occurs, some properties some properties change, but the change, but the identity of the identity of the substance substance remains the remains the same.same.

MixturesMixtures

SolutionsSolutions

Back to Chemical ChangesBack to Chemical Changes

To understand chemical changes, To understand chemical changes, one must understand the one must understand the structure of matter.structure of matter.

AtomsAtoms Elements & Periodic TableElements & Periodic Table ReactionsReactions

WORKS CITEDWORKS CITED

http://www.chem4kids.comhttp://www.chem4kids.com