Chem test

The study of matter and changes in matter best describes the science of

• biology

• physics

• microbiology

• chemistry

Chemistry is defined as the study of the composition and structure of materials and

• the categories of matter

• the changed in matter

• the electrical currents in matter.

• molecules in living things.

Study of the composition and structure of materials and the changes that materials undergo best describes the science of

• chemistry

• biology

• physics

• engineering

The study of substances containing carbon is

• organic chemistry

• inorganic chemistry

• nuclear chemistry

• analytical chemistry

Matter includes all of the following EXCEPT

• air

• light

• smoke

• water vapor

A physical property may be investigated by

• melting ice

• letter milk turn sour

• allowing silver to tarnish

• burning wood

two features that distinguish matter are

• mass and velocity

• weight and velocity

• mass and volume

• weight and volume

one chemical property of matter is

• boiling point

• texture

• reactivity

• density

a chemical change occurs when

• dissolved minerals solidify to form a crystal

• ethanol is purified through distillation

• salt deposits from evaporated sea water

• a leaf changes color

an example of chemical change is

• sanding wood

• melting ice

• milk going sour

• vaporizing gasoline