05.25.09
8th Grade Exam Summaries
topic-review-fill-in <– Here is the handout
READ THE DIRECTIONS FROM THE SUB-PLAN Post.
Post your exam summaries here after completing the Topic Review Handout. If your group finishes early, post sample questions related to your topic.
DO NOT PRINT OUT REVIEWS FOR EACH CLASSMATE. THEY CAN LOOK AT YOUR SUMMARY ONLINE AND IT IS A WASTE OF PAPER.
Groups
OHMS LAW – Catherine, Milla, & Maggie
ELECTRICAL ENERGY AND POWER CONSUMPTION- Enrique, Liz, & Drew
SERIES AND PARALLEL CIRCUITS- Rusty, Konnie, & Ana
BATTERIES/GENERATORS & FUSES/C.BREAKERS- Claire, Rachel, & Lauren
SUBATOMIC PARTICLES- Zack, Brock, & Lucy
BOHR MODEL & ATOMIC STRUCTURE – Jordan, Elisabeth, Jake, & Jennifer
ORGANIZATION/CREATION OF Periodic Table – Andye (or Andie), Emma, & Olivia
METALS (include groups) – Kaisser, Brynn, & Paige
NONMETALS&METALLIODS (include groups) – Embrey, Augusta, & Hilary
IONIC/COVALENT/METALLIC BONDS – Katy, Juaquin, & Hannelore
TYPES OF CHEMICAL REACTIONS – Brynn T & David
May 26, 2009 at 8:57 am
The periodic table is a chart of elements organized in groups and periods according to their mass, their structure, their atomic number, and their classification. It was invented by Dmitri Mendeleev in 1869. Each little box of an element, has the name of the element, the atomic number, atomic symbol, and atomic mass. They are each categorized in groups numbering from 1-18. The periodic table is a nice organized way to present your elements.
olivia emma and andye
May 27, 2009 at 2:30 pm
Topic Review
TOPIC : Metals _____________________________________________
Summary
An element that typically is a hard, shiny solid, is malleable and is a good conductor of heat and electricity. The metal groups include Transition metals, Alkali metals, and Alkaline Earth metals
Key Terms
1.Malleable- if it can be hammered into a sheet and makes coins and tubing
2.Ductile- if it can be made into a wire
3.Metalic Bonding- metal and metal bonding, sea of electrons
Other Topics it relates to: Iron triad, coinage metals, Zinc, Cadmium and Mercury, Lanthanides and Actinides
Diagram
Metals Non-metals
Give or take electrons in ionic bonds? Gives Takes
Most common phase of matter at room temperature? Solid Gas
Forms what bonds with alkali atoms Metallic Covalent
Conductor or insulator Conductor Insulator
Appearance when a solid Shiny, ductile Brittle and dull
Applications: Metals are used in construction because it is very hard, malleable and ductile. Alkaline Earth metals are used in fireworks because they are reactive.
Memory Aid: Flipper book
What Mr. Kremer might ask (or has asked): Define Malleable and ductile. How are these properties of metal useful?