Today the students finished developing their summaries of an informational text using close-reading strategies.
Today we practiced the valuable skill of using a nonfiction text to gather information. We practiced identifying important concepts and main ideas in an article in order to create a summary of the information.
Today in class we practiced drawing Bohr models once more. Afterwards, we took a few notes down to recap all of the work we have done with light and energy and how it related to the flame test lab.
Today in class we worked on drawing the Bohr model for different elements on the periodic table. We reviewed how to find the number of protons, neutrons, and electrons in an atom and then how to use this information to create a model that represents the locations of the different particles in the atom.
Today in class we performed flame tests to observe the colors that different solutions give off when heated in a bunsen burner. The students observed the colors given off by a set of known chemicals, and then used their observations to try and identify two unknown substances.
Today in class we reviewed the work on periodic table organization that we have been working on before taking a brief quiz to ensure that each student had the needed notes on their personal periodic tables. Afterwards, we took a few notes that introduced the concepts of light and how it relates to energy and the atom. Tomorrow, we will be using this information to perform a flame test lab and compare the light given off by different substances.
Today in class the students continued working to label important information on their personal periodic tables so that they have the information for their assessments. While they worked on identifying this information, I began teaching students in pairs how to safely light a bunsen burner in preparation for our lab next week.
The information that needs to be included is:
Today in class the students worked to label important information on their personal periodic tables so that they have the information for their assessments. While they worked on identifying this information, I began teaching students in pairs how to safely light a bunsen burner in preparation for our lab next week.
Today in class we discussed the arrangement of the periodic table into groups and families based on their similar properties and behaviors. Today we talked about alkali metals and the halogens in particular. We observed through a demo what happens when alkali metals such as Lithium, Sodium, and Potassium come into contact with water. We also watched a clip of the heavier alkali metals such as Rubidium and Cesium in water and the violent explosions they cause.
After the alkali metals, we talked about the reactivity of the halogens, and how they are present in many of our strong acids. As an example, we watched a video that showed what happens when food comes into contact with hydrochloric acid, such as in your stomach. Today in class we discussed using the mole as a way of expressing a large number of atoms at once, and that 1 mole of an element is equal to its molar mass on the periodic table. We then used the mole to make comparisons between two amounts of elements to decide which one had a greater number of atoms.
HW: Complete the Weighted Avg. and Proton/Neutron/Electron Worksheet |
Mr. SasséGeneral Chemistry Archives
February 2016
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