What is the simplest substance? - ✔️✔️elements
pure substance - ✔️✔️A type of matter with a constant composition.
subatomic particles - ✔️✔️electron, protons, and neutrons.
Elements - ✔️✔️atoms of the same type grouped together.
Chemistry - ✔️✔️the study of matter and its interactions
Matter - ✔️✔️anything that has mass and takes up physical space.
Atom - ✔️✔️the smallest units of matter that retain the properties of that matter.
Mass - ✔️✔️A measure of the amount of matter that an object contains.
Volume - ✔️✔️The amount of physical space a substance or object occupies.
periodic table - ✔️✔️displays all known element according to similarities between
elements' properties.
What makes up all of the material in the universe? - ✔️✔️Matter
What's an example of a pure substances? - ✔️✔️Aluminum
What's a compound? - ✔️✔️A substance made up of 2 or more different elements
joined together.
What's an example of a compound? - ✔️✔️H2O, table salt
What is a mixture? - ✔️✔️A combination of 2 or more pure substances that retains its
own identity & properties.
What are the 2 types of Mixtures? - ✔️✔️homogeneous and heterogeneous mixtures
What's an example of a mixture? - ✔️✔️Salt water
Can matter be a mixture or pure substance? - ✔️✔️Yes, it can be both.