Science

Matter and mixtures

100

Heterogenous mixture 

What is a type of mixture in which the individual substances are not evenly mixed

200

Homogenous mixture

A type of mixture in which the individual substances are evenly mixed. 

300

Matter

The stuff that takes up the space of an object 

400

Mixture

Matter that can vary in composition 

500

Substance

Matter with a composition that is always the same

States of matter

100

States of matter

Double points for the 4th

Solid, liquid, gas

Plasma

200

Viscosity

The measurement of a liquid’s resistance to flow

300

Surface tension

The uneven particles on the surface of a liquid

400

Melting

Solid —> Liquid

500

Deposition 

Gas —> Solid

Physical/chemical changes

100

Physical or chemical? Change in shape

Physical

200

Physical or chemical? Release of gas

Chemical

300

Physical or chemical? Change in size

Physical

400

List all chemical changes

Change in color, light, smell, giving off or taking in heat, gases released, can’t be undone 

500

Physical or chemical change? Change in color

Both

Different Phase changes

100

Melting

Solid to liquid

200

Freezing

Liquid to solid

300

Boiling

Liquid to gas

400

Condensation 

Gas to liquid

500

Sublimation 

Solid to gas

Atoms

100

Parts of the atom

Electrons, neutrons, and protons 

200

Mass number

Sum of numbers of protons and neutrons in an atom 

300

Atomic number

Number of protons in an atom of an element

400

Isotopes

Atoms of the same element that have different numbers of neutrons

500

Ions

An atom that is no longer neutral because it has gained or lost electrons