Science Vocabulary

A substance that is uniform (the same) throughout.

• Pure substance

• Exothermic reaction

• Endothermic reaction

• Subscipt

A pure substance that is made up of atoms and represented by a chemical symbol on the Periodic Table of Elements.

• Compound

• Atom

• Element

• Molecule

A pure substance that is made up of molecules and represented by a chemical formula.

• Element

• Compound

• Periodic Table

• Chemical formula

Tags

NGSS.MS-PS1-1

A combination of two or more materials that can be separated easily.

• Compound

• Element

• Mixture

• Subscript

A characteristic that you can observe such as texture, color, density, smell, etc.

• Chemical property

• Physical property

• Mixture

• Compound

These make up elements and cannot be broken down into any simpler substances.

• Compound

• Element

• Molecules

• Atoms

This was created by Dimitri Mendeleev and houses every single element in our world.

• Element

• Compound

• Periodic Table

• Atom

This represents a compound because it has more than one capital letter.

• Compound

• Element

• Chemical symbol

• Chemical formula

Tags

NGSS.MS-PS1-1

This is the number that tells you the number of atoms that are present in a chemical formula or symbol.

• Chemical property

• Element

• Subscript

• Pure substance

This represents an element because there is only one capital letter. Can also be found on the Periodic Table.

• Chemical formula

• Chemical symbol

• Chemical property

• Chemical substance