Day 1 - AM

A __________ is any substance that has a definite composition. Carbon dioxide, Water, and sucrose are examples.

The study of the composition, structure, and properties of matter; the processes that matter undergoes; and the energy changes that accompany those processes best describes the science of:

• biology

• physics

• chemistry

• astronomy

The definition of a chemical is:

• a toxic substance made in a laboratory.

• an unnatural material added to foods.

• any substance that has a definite composition.

• anything that has mass and takes up space.

Mass is a measurement of

• how much space an object occupies.

• how dense an object is.

• the amount of matter in an object.

• the volume of an object

The fundamental building block of matter is the:

• atom

• molecule

• cell

• proton

An element is made of one type of:

• molecule

• atom

• compound

• mixture

Which statement best describes an element?

• any combination of two or more atoms of different types

• a pure substance made up of only one kind of atom

• a substance containing only carbon atoms

• any kind of crystal

Chemistry is a natural science that deals with the study of

• living things and their life processes.

• the physical features of Earth.

• the composition, structure, properties, and changes of matter.

• the composition, motion, and relative positions of stars and planets.

Which of these is an example of an element?

• sugar

• soil

• water

• oxygen

Which of the following is an example of a compound?

• carbon

• nitrogen

• water

• hydrogen