Silicon is a metalloid, an element with properties of both metals and non-metals. Silicon exists in two allotropic forms. Allotropes are forms of an element with different physical and chemical properties.One allotrope is in the form of shiny, grayish-black, needle-like crystals, or flat plates.The second allotrope has no crystal structure and usually occurs as a brown powder.ilicon exists in two allotropic forms. Allotropes are forms of an element with different physical and chemical properties. One allotrope is in the form of shiny, grayish-black, needle-like crystals, or flat plates. The second allotrope has no crystal structure and usually occurs as a brown powder.
The Summative Assessments are comprehensive end of year assessments of grade-level learning that measure progress toward college and career readiness.
Attachment: Summative Assessment Answer Key. 1  Learning Objectives: What will students know and be able to do as a result of this lesson? 2  Students will gain an understanding of statistical variability. 3  Students will define a statistical question as one that the answers making up the data vary. 4  Student will differentiate between a statistical 5  .... Gui