Checkpoint practice 2024 (MAIN)

Front

What happens to water vapor when it touches a cold surface?

Back

The water vapor in the air changes to a liquid when it touches the cold surface.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What are elements?

Back

Elements are pure substances that cannot be broken down into simpler substances by chemical means. Examples include sulfur (S), iron (Fe), and oxygen (O₂).

Tags

NGSS.MS-PS1-1

Front

What is malleability?

Back

Malleability is the ability of a material to be deformed or shaped under compressive stress, often by hammering or rolling.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties. Examples include air and salad.

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the difference between a mixture and a compound?

Back

A mixture is a physical combination of substances, while a compound is a chemical combination of two or more elements.

Front

What is an example of a nonmetal?

Back

An example of a nonmetal is sulfur (S) or oxygen (O₂). Nonmetals are typically poor conductors of heat and electricity.

Front

What is the significance of observing physical properties in substances?

Back

Observing physical properties helps identify and classify substances based on characteristics like color, density, and state of matter.

Front

What is the role of temperature in the state of matter?

Back

Temperature affects the kinetic energy of particles, influencing whether a substance is solid, liquid, or gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is condensation?

Back

Condensation is the process by which water vapor in the air cools and changes into liquid water, often seen as droplets on a cold surface.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

NGSS.MS-PS1-4