Unit 1 PS

A pure substance that cannot be broken down into other substances by chemical or physical means

• atom

• compound

• molecule

• element

Building blocks of matter, the smallest part of an element that still has all the properties of that element.

• atom

• compound

• molecule

• element

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

A pure substance that contains a group of TWO or more ATOMS held together by a chemical bond

• atom

• compound

• molecule

• element

Tags

NGSS.MS-PS1-1

A pure substance that is a special type of molecule made up of TWO or more DIFFERENT types of ATOMS held together by a chemical bond

• atom

• compound

• molecule

• element

two or more substances that are together in the same place but their atoms are NOT chemically bonded

• mixture

• compound

• element

• molecule

a type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another

• Homogenous Mixture

• Heterogenous Mixture

a type of mixture in which different materials can be distinguished easily

• Homogenous Mixture

• Heterogenous Mixture

Characteristic that can be observed without changing the composition of a substance

• Chemical Property

• Physical Property

Characteristic of a pure substance that describes its ability to change into different substances

• Chemical Property

• Physical Property

Tags

NGSS.MS-PS1-5

a measure of the amount of matter in an object

• mass

• density

• volume

• displacement