Download presentation
Presentation is loading. Please wait.
Published byBuck Morton Modified over 9 years ago
1
STATION 1
2
ELEMENTS Simplest form of matter. Cannot be broken down by chemical means any further. Each element is identified by the number of protons in its atomic nucleus (known as the atomic number on the Periodic Table) Examples: Carbon – has 6 protons Nitrogen – has 7 protons
3
COMPOUNDS Consists of two or more atoms chemically combines (in simple whole number ratios). Composition is consistent throughout. Two main types of compounds: Ionic and Molecular Example: NaCl (Sodium Chloride – table salt) Example: H 2 O (Water)
4
HOMOGENEOUS MIXTURE A mixture of substances that is consistent throughout…Only one phase is visible. Substances dissolved in water are called aqueous solutions. A mixture of metals are called alloys.
5
HETEROGENEOUS MIXTURE A mixture of substances in which two or more distinct phases are visible. Examples: Italian salad dressing.
6
STATION 2
7
SANDSTONE Basically, a sedimentary rock compound of sand-sized minerals. There is no orderly arrangement to these particles, so, you see no discrete, geometric facets on the stone. The arrangement of the particles is said to be amorphous, Glass (SiO 2 ) is another example of an amorphous solid.
8
GALENA An ore that consists almost entirely of lead sulfide, PbS. The shape of its crystalline solid is due to an orderly arrangement of the atoms within. Just like the model of NaCl… why is salt in this form of cubes? Its atoms are arranged that way….
9
NaCl CRYSTALLINE LATTICE Table salt, NaCl, forms cubic crystals. Their models helps to show you why it forms cubes as its sodium (white) and chloride (red) ions bond in an orderly, cubic fashion. The outward shape does give insight into how the atoms are arranged.
10
STATION 3
11
STATION 4
12
CRYSTALLIZATION Many salts have a higher solubility in warm water than cold. One way to obtain the salt from a solution is to simply cool it off (which lowers its solubility). The water no longer has the same capacity, so the salt crystallizes “out” of solution.
13
CHROMATOGRAPHY As water absorbs up the paper, it dissolves the ink. The black ink is a mixture of color. Some color molecules have a stronger attraction to paper than others So those colors don’t move up the paper as much resulting in separation of the colors.
14
DISTILLATION Takes advantage of different boiling points of substances mixed together. When salt water boils, only the water escapes (boils off). This steam is then condensed and captured, leaving the salt (NaCl) behind.
15
FILTRATION Process used to separate solids from fluids by interposing a medium (filter paper) through which only the fluid can pass. Example: Coffee Filters – water passes through the coffee filter with any coffee that completely dissolved in water but retains all of the coffee grinds (solids) that are not dissolved.
16
STATION 5
17
CHEMICAL PROPERTY The ability or inability of a substance to combine with or change into one or more other substances Examples: Rusting, color change, bubbling, temperature change when combining two or more substances.
18
PHYSICAL PROPERTY Characteristic of matter that can be observed or measured without changing the sample’s composition. Examples : density, color, odor, hardness, melting point, boiling point.
19
STATION 6
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.