7th Grade Science Unit 1 Vocabulary Flashcard-Department

Front

Anything that has mass and takes up space is considered...

Back

Matter

Front

A single kind of matter that has a specific makeup, or composition
(It CANNOT be broken down physically)

Back

substance

Front

A characteristic that can be observed WITHOUT changing the matter into another type of matter (We can observe it just by using our 5 senses)

Back

Physical Property

Front

A characteristic that describes the ability of something to CHANGE into something else (We only see it when matter changes)

Back

Chemical Property

Front

The Basic Unit of All Matter is referred to as an

Back

atom

Front

___________ are substances made up of just one type of atom (they are by themselves; not bonded to any other atom)

Back

Element

Front

A _____________ is a group of AT-LEAST two atoms held together by chemical bonds

Back

Molecule

Front

A _______________ is a group of two or more DIFFERENT elements that are held together by chemical bonds.

Back

compound

Front

This is what we use to show all of the elements (and # of atoms of each element) in a molecule.

Back

Chemical Formula

Front

When you have two or more substances that are together in the same place but their atoms are NOT chemically bonded you have a...

Back

mixture