Something that is made of all the same atoms or groups of atoms?
Substance
Fertilizer
Letters and numbers showing the types and number of atoms that repeat to make up a substance
Chemical Formula
Chemical Reaction
A structure formed by repeating groups of atoms linked together in a large network?
Extended Structure
Substance
The temperature at which a substance changes from the solid phase to the liquid phase?
Melting Point
Boiling Point
An object, diagram, or computer program that helps us understand something by making it simpler or easier to see?
Model
Molecule
Something that can be observed about a substance, such as color, smell, or boiling point?
Property
Product
A process in which atoms rearrange to form new substances
Chemical Reaction
Scale
A starting substance that is part of a chemical reaction?
Property
Reactant
An ending substance that is made during a chemical reaction?
Reactant
Product
The relative size of things?
Scale
Model
A group of atoms joined together in a particular way?
Scale
Molecule
The tiny pieces that all matter—all the stuff in the world—is made of?
Atoms
Fertilizer
Able to cause damage?
Corrosive
Product
A substance that is added to soil to help plants grow?
Atoms
Fertilizer
The temperature at which a substance changes from the liquid?
Reactant
Boiling Point
To change the order or position of something?
Scale
Rearrange