The Basics of Chemistry
We will be talking about chapters 2 and 3 and there TEKS
more about the chapters!
TEKS related to chapter 2
The TEKS for Scientific Notation and Dimensional Analysis is 2(G)- it says express and manipulate chemical quantities using scientific conventions and mathematical procedures, including Dimensional Analysis, Scientific Notation, and Significant Figures.
The TEKS for How reliable are Measurements? is also 2(F)- which says collect data and make measurements with accuracy and precision.
The TEKS for Representing Data is 2(H) and 2(I): 2(H) says to organize, analyze, evaluate, make inferences, and predict trends from data, and 2(I) says communicate valid conclusions supported by the data through methods such as lab reports, labeled drawings, graphs, journals, summaries, oral reports, and technology-based reports.
TEKS for Chapter 3
3.1) Properties of Matter the TEKS are 4(A) and 4(C). 4(A) says differentiate between physical and chemical changes and properties and 4(C) says compare solids, liquids, and gases in terms of compressibility, structure, shape, and volume.
3.2) Changes in Matter the TEKS are 4(A) and 8(D) 4(A) says differentiate between physical and chemical changes and properties and 8(D) says to use the law of conservation of mass to write and balance chemical equations. The Law of Conservation of Mass which is also known as the principle of mass/matter conservation.states that the mass of an isolated system (closed to all matter and energy) will remain constant over time. This principle is equivalent to the conservation of energy, in the sense when energy or mass is enclosed in a system and none is allowed in or out, its quantity cannot otherwise change (hence, its quantity is "conserved").
3.3) Mixtures of Matter the TEKS are 4(D) which says to classify matter as pure substances or mixtures through investigation of their properties. Pure substances contain only one type of substance (they can be elements or compounds). For example, a jug of distilled water contains only water molecules (H2O) so that is a pure substance. Just like a piece of copper wire only contains copper atoms, that is a pure substance. A mixture is a substance made by mixing other substances together.
3.4) Elements and Compounds the TEKS are 5(A), 5(B) and 6(D). 5(A) says to explain the use of chemical and physical properties in the historical development of the Periodic Table.
5(B) says to use the Periodic Table to identify and explain the properties of chemical families, including alkali metals, alkaline earth metals, halogens, noble gases, and transition metals.
links to know more
- a video on density: http://www.youtube.com/watch?v=CU0W5jX4zKY&feature=youtu.be&noredirect=1
- a video on the mixtures of substances: http://www.youtube.com/watch?v=60CnKgVNQiw
- a video on scientific notation: http://www.youtube.com/watch?v=H578qUeoBC0
- a video on energy changes: http://www.youtube.com/watch?v=RD_54Cq_UMM