8th Grade Vocabulary Review

An ________________ is the smallest unit of an element that maintains the properties of that element.

• solution

• autotroph

• eclipse

• atom

Tags

NGSS.MS-PS1-1

The ______________ is the atom's central region and contains the protons and neutrons.

• moon phases

• nucleus

• eclipse

• gravity

The ______________ __________ is an arrangement of the elements in order of their atomic numbers and organized with similar properties that fall into groups and columns.

• Physical Properties

• Chemical Change

• Periodic Table

• Law of Conservation of Mass

A ____________ has a ph above 7, soap is an example

• Base

• Acid

• Solution

• Mixture

An _____ has a ph below 7, lemon juice is an example

• Base

• Solution

• Mixture

• Acid

An ______________ is a substance that cannot be separated or broken down into simpler substances by chemical means.

• Mixture

• Solution

• Element

• Compound

A _______________ is a substance made up of atoms or ions of 2 or more different elements joined together by a chemical bond. Water is an example.

• Compound

• Element

• Molecule

• Solution

Tags

NGSS.MS-PS1-1

A ______________ __________ is either a single compound, that has definite chemical and physical properties, gold is an example.

• Conservation of Mass

• chemical change

• Physical properties

• Pure substance

________________ describes a mixture that has a uniform structure throughout, ice tea would be an example.

• Mixture

• Homogenous

• Heterogenous

• Galaxy

A ____________ is a combination of 2 or more substances that are not chemically combined.

• Universe

• Base

• Acid

• Mixture