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# Solutions for Chapter 7: The Periodic Table

## Full solutions for Holt Science & Technology California: Student Edition Grade 8 Physical Science 2007 | 1st Edition

ISBN: 9780030426599

Solutions for Chapter 7: The Periodic Table

Solutions for Chapter 7
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##### ISBN: 9780030426599

Chapter 7: The Periodic Table includes 40 full step-by-step solutions. Since 40 problems in chapter 7: The Periodic Table have been answered, more than 3909 students have viewed full step-by-step solutions from this chapter. This textbook survival guide was created for the textbook: Holt Science & Technology California: Student Edition Grade 8 Physical Science 2007, edition: 1. This expansive textbook survival guide covers the following chapters and their solutions. Holt Science & Technology California: Student Edition Grade 8 Physical Science 2007 was written by and is associated to the ISBN: 9780030426599.

Key Science Terms and definitions covered in this textbook
• Abyssal plain

Very level area of the deep-ocean floor, usually lying at the foot of the continental rise.

• Air pressure

The force exerted by the weight of a column of air above a given point.

• Convergent boundary

A boundary in which two plates move together, causing one of the slabs of lithosphere to be consumed into the mantle as it descends beneath on an overriding plate.

• Crystal shape

See Habit.

The gradual increase in temperature with depth in the crust. The average is 30° C per kilometer in the upper crust.

• Heat

The kinetic energy of random molecular motion.

• Inner core

The solid innermost layer of Earth, about 1,300 kilometers (800 miles) in radius.

• Ionic bond

A chemical bond between two oppositely charged ions formed by the transfer of valence electrons from one atom to the other.

• Law of conservation of angular momentum

The product of the velocity of an object around a center of rotation (axis), and the distance squared of the object from the axis is constant.

• Liquefaction

A phenomenon, sometimes associated with earthquakes, in which soils and other unconsolidated materials containing abundant water are turned into a fluid-like mass that is not capable of supporting buildings.

• Massive

An igneous pluton that is not tabular in shape.

• Mohorovicˆi´c; discontinuity (Moho)

The boundary separating the crust from the mantle, discernible by an increase in seismic velocity.

• Monthly mean temperature

The mean temperature for a month that is calculated by averaging the daily means.

• Negative feedback mechanism

A feedback mechanism that tends to maintain a system as it is—that is, maintain the status quo.

• Period

A basic unit of the geologic calendar that is a subdivision of an era. Periods may be divided into smaller units called epochs.

• Polar (P) air mass

A cold air mass that forms in a high-latitude source region. Polar easterlies In the global pattern of prevailing winds, winds that blow from the polar high toward the subpolar low. These winds, however, should not be thought of as persistent winds, such as the trade winds.

• Revolution

The motion of one body about another, as Earth about the Sun.

• Trellis pattern

A system of streams in which nearly parallel tributaries occupy valleys cut in folded strata.

• Turbidite

Turbidity current deposit characterized by graded bedding.

• Unsaturated zone

The area above the water table where openings in soil, sediment, and rock are not saturated but filled mainly with air.

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