Focus Activity: Reading Check- POP QUIZ- copy down the homework and then clear off your desk. Homework: Find/Draw pictures/diagrams for your foldable.

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Presentation transcript:

Focus Activity: Reading Check- POP QUIZ- copy down the homework and then clear off your desk. Homework: Find/Draw pictures/diagrams for your foldable flipbook.

Compound Heterogeneous Focus Activity: Get 1 of each of the colored sheets of colored paper. Put the bright pink on top of the lavender on top of the gold on top of the blue. Shift each paper up so that 1.5 cm of the color is showing. Fold from the top down so that the 2 bright pink parts meet. See Board for Example!! See below for labeling. Classification of Matter Section 2.1 Substance Mixture Element Homogeneous Atom Solution Compound Heterogeneous Molecule Suspension Concept Map Colloid Extra Information

Compound Heterogeneous Cut each page in half - Except for the top and bottom blue page Almost to the top staple. Substance Mixture Element Homogeneous Atom Solution Compound Heterogeneous Molecule Suspension Concept Map Colloid

On each half sheet (except Concept Map) write… Definition 2. Definition Example 3. Example

On the top flap of EVERY page write… 1. Diagram 1. Diagram

Matter – top page flap Anything that has mass and takes up space Matter can have many different properties or characteristics. These properties and characteristics are used to classify matter in much the same way that the characteristics of living things are used to classify organisms. Chemistry is the study of the properties of matter and how matter changes.

Substance Matter that is pure Has a specific composition (what it’s made of) All particles are the same. Specific properties Properties Physical – characteristic of a pure substance that can be observed without changing it into another substance Examples of physical properties are: boiling point and freezing point, hardness, texture, color, solubility, phase of matter, flexibility, magnetism, conductivity, etc. Chemical – characteristic of a pure substance that describes its ability to change into different substances Examples of chemical properties are flammability and reactivity with other substances.

Take a baggie. Sort the objects in your baggies into 3 groups Take a baggie. Sort the objects in your baggies into 3 groups. Describe the differences between the groups and make a list of characteristics.

Examples of Substances Has specific properties All the Same Has a specific composition.

Elements Pure substance that can not be broken down into any other substances by chemical or physical means. Composed of identical atoms.

Atoms Basic particle from which all elements are made.

Compounds -composed of 2 or more elements in a fixed ratio properties differ from those of the individual elements Chemical Bonds hold the elements together EX: table salt (NaCl)

Molecules Groups of two or more atoms bound by chemical bonds Can be two of the same element

Focus Activity: Make a graphic organizer to… Show the relationships between: Substances Atoms Compounds Molecules Elements Grab a markerboard, marker and sock, place it under your desk for use later in the period. DO NOT DRAW ON THE MARKERBOARD!

Chemical Formula-Extra Info Shows the compound and the ratio of atoms.

Mixtures Variable combination of 2 or more pure substances. Each keep individual properties http://player.discoveryeducation.com/index.cfm?guidAssetId=c44da0f1-32c2-4de1-90e0-89e856fb9518 Heterogeneous – You can see the different Parts Homogeneous – Evenly Mixed Can not see the different Parts

Tyndall Effect (Extra Info) The scattering of light by particles in a mixture http://www.youtube.com/watch?v=gheuYqQ6phE&feature=related

Mixtures Suspension heterogeneous large particles Tyndall effect particles settle EX: fresh-squeezed lemonade Sand in water http://player.discoveryeducation.com/index.cfm?guidAssetId=60c09eba-09c5-4273-916f-078d37b3f92b

Mixtures Colloid heterogeneous medium-sized particles Tyndall effect particles don’t settle EX: milk Clouds Smoke mayo

Mixtures Solution very small particles homogeneous no Tyndall effect particles don’t settle EX: rubbing alcohol (ethyl alcohol and water) Air (N2 + O2) http://player.discoveryeducation.com/index.cfm?guidAssetId=eeed02e8-60c2-4bd8-a4f1-ef6c8004a30b

What type of Mixture am I? Colloid Suspension Solution mayonnaise muddy water fog saltwater Italian salad dressing

Concept Map- Fill this in on your foldable MATTER yes no Can it be physically separated? MIXTURE PURE SUBSTANCE Is the composition uniform? no yes Can it be chemically decomposed? no yes Homogeneous Mixture (solution) Heterogeneous Mixture Compound Element Colloids Suspensions

Pure Substances (Extra Info) Law of Definite Composition A given compound always contains the same, fixed ratio of elements. Two different compounds, each has a definite composition.

Pure Substances (Extra Info) Law of Multiple Proportions Elements can combine in different ratios to form different compounds. CO CO2