1st Semester Review

Front

What are the physical characteristics of metals?

Back

Metals are malleable, ductile, and good conductors of heat and electricity.

Front

How can you identify elements in the green section of the periodic table?

Back

Elements in the green section are identified as metals.

Front

What is the kinetic energy of atoms in solids compared to liquids and gases?

Back

The kinetic energy of atoms in solids is much lower than in liquids and gases.

Tags

NGSS.MS-PS1-4

Front

What happens to an object with a density of 1.4 g/mL when placed in water with a density of 1.0 g/mL?

Back

The object sinks because it is denser than water.

Front

What type of change occurs when two or more substances combine without forming a new substance?

Back

A physical change occurs when substances combine without forming a new substance.

Front

Define malleability in metals.

Back

Malleability is the ability of a metal to be hammered or rolled into thin sheets.

Front

What is ductility in metals?

Back

Ductility is the ability of a metal to be drawn into wires.

Front

What is a conductor?

Back

A conductor is a material that allows electricity or heat to flow through it easily.

Tags

NGSS.MS-PS3-3

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, malleable, ductile, and good conductors, while nonmetals are usually dull, brittle, and insulators.

Front

What is density?

Back

Density is the mass of an object divided by its volume, often expressed in g/mL.