8th Grade Science 1st Semester Exam Review

Front

What type of property describes something that easily catches fire?

Back

Chemical property: A characteristic of a substance that describes its ability to undergo a specific chemical change, such as flammability.

Front

What is the variable that is expected to change because of another variable?

Back

Dependent variable: The variable in an experiment that is measured and affected by changes in the independent variable.

Tags

NGSS.MS-PS1-2

Front

Which group of elements share characteristics with both metals and nonmetals?

Back

Metalloids: Elements that have properties of both metals and nonmetals, often found along the zig-zag line on the periodic table.

Front

What do the elements in a column of the periodic table have in common?

Back

Similar properties: Elements in the same group or column of the periodic table exhibit similar chemical and physical properties.

Front

What is a working model used to test a design called?

Back

Prototype: An early sample or model built to test a concept or process.

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Front

What is the term for a substance that cannot be broken down into simpler substances?

Back

Element: A pure substance that consists of only one type of atom.

Front

What is the process called when a liquid turns into a gas?

Back

Evaporation: The process by which molecules in a liquid state gain enough energy to enter the gaseous state.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the term for the amount of matter in an object?

Back

Mass: A measure of the amount of matter in an object, typically measured in grams or kilograms.

Tags

NGSS.MS-PS2-4

Front

What is the term for the change of state from solid to liquid?

Back

Melting: The process in which a solid becomes a liquid when heat is applied.

Tags

NGSS.MS-PS1-4

Front

What is the name of the negatively charged particle in an atom?

Back

Electron: A subatomic particle with a negative charge that orbits the nucleus of an atom.