Ms Ps1 2

Substances giving off a smell, or ________, while being combined is also an indicator of a chemical reaction

Tags

NGSS.MS-PS1-2

2+ Pure substances joined together physically, but not chemically

• Mixture

• Pure Substance

• Law of Conservation of Mass

• Atom

Law of Conservation of Mass states:

• Chemical reactions can change in mass

• None of the above

• Mass is the same in chemical reactions but different in physical changes

• Mass is neither created nor destroyed

Tags

NGSS.MS-PS1-5

Mass is the measure of _______ in a substance

• Purity

• Matter

• Oxygen

• Properties

Compounds are 2+ ______ atoms joined together chemically. An example is table salt.

• same

• small

• different

• equal

Tags

NGSS.MS-PS1-1

A chemical equation starts with ​ (a)   on the left side and ​ (b)   on the right side. ​

• reactants

• products

Tags

NGSS.MS-PS1-5

An ______ is so small the human eye cannot see it and it is composed of protons, neutrons, and electrons.

• Element

• Atom

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Match the following

• Atom

• a chemical substance that cannot be broken down into other substances

• Pure Substance

• The smallest particle of an element; made of electrons, protons, and neutrons

• Element

• Formed when two or more DIFFERENT atoms join together chemically

• Molecule

• Formed when two or more SAME atoms join together chemically

• Compound

• A single substance, either an element or compound, with definite composition and properties

Tags

NGSS.MS-PS1-1

Density is a ______ property

• Chemical

• Physical

Density is...

• Mass/Volume

• A chemical property

• Volume/Mass

• Matter/Properties