The HUGE Properties Created By: Ciara Johnson, Charity Wardlaw, Ariana Foster, Tashara Williams, Josiah Dumbar & Itzel Gerardo

Physical Properties Physical Properties are observed and measured without changing the kind of matter that is being studied

Melting Point Melting Point is when a solid gets hot enough start turning into a liquid state such as the ice cream in the picture. Ice melts turns into a liquid state at 00C(32oF)

Boiling Point Boiling Point is the point when water starts to boil. During the process the substance changes from liquid to a gas. The boiling point for pure water is 100oC or 212oF.

Density Density describes the relationship between mass and its volume. Density stays the same no matter how large or small the sample of the substance.

Color Color can be used to identify a substance, along with other properties. Absence of color is also a physical property.

Chemical Properties Can also be used to identify a substance. Chemical properties can be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change.

Reacting with Oxygen The ability of a substance to burn is a chemical property The ability of a substance to burn is a chemical property A substance reacting quickly with oxygen to produce light and heat A substance reacting quickly with oxygen to produce light and heat

Reacting with Acids The ability of a substance to react with an acid is a chemical property Some metals react with various acids to form a compound All metals do NOT react with all acids

Physical Changes Do Not changes the composition of a substance, only the physical properties Evidence of chemical change include :

Change in state of matter When a substance changes form one state of matter to another ( for example, changing from solid to liquid, from liquid to solid, or from liquid to gas ), the composition of the substance remains the same. Examples of change in state might include : melting ice cream,hardening of melted wax, or evaporating of water from wet clothes When a substance changes directly from gas to a solid ( the forming of frost from water vapor )or from a solid ( dry ice, solid air fresheners ) that change of state is called sublimation. This is still a physical change because the composition of the substance remains the same.

Change in size or shape When an substance changes the shape it has but not what it is made of. Examples: shredding paper wadding up a piece of paper

Chemical Changes Is the formation of one or more substances with new chemical and physical properties. These include: Color change Temperature change Formation of a precipitate Formation of a gas

Color change When the color of a substance changes, sometimes it changes the way it is composed but not always Example of when it changes: burned food is changed from its original Examples of it not changing: adding food coloring

Temperature Change  Temperature Change: When a substance is combined with another substance. There can be a increase or decrease in temperature. Examples: When wood burn to ash and gases, the temperature increase.

Formation of Precipitate  Formation of Precipitate: When two solutions are combined, they may form a solid substance. This solid substance is called a precipitate. It indicates that a chemical change has occurred. Example: when carbon dioxide is combined with aqueous calcium hydroxide (limewater), solid calcium carbonate (chalk) is formed as the precipitate.

Formation of a Gas  Formation of a as: when a solid or liquid substance are combined, they may form gas bubbles. Example: When water is heated to boiling