GRADE SCHOOL CHEMISTRY FINAL ASSESSMENT

This is the basic building block for all matter in the universe.

• atom

• molecule

• element

TRUE or FALSE: The basic particles that make up an atom are orbit, electrons, protons, and neutrons.

• FALSE

• TRUE

TRUE or FALSE: The first atomic theory was about the model of an atom that looks like a billiard ball.

• TRUE

• FALSE

He is the Greek philosopher who began the search for a description of matter more than 2400 years ago.

• Aristotle

• John Dalton

• Democritus

These two philosophers created a theory that the atom is consists of four elements which are the fire, water, air and earth.

• Aristotle

• Plato

• Democritus

Democritus named the smallest piece of matter “_____,” meaning “not to be cut.”

• atomos

• atom

• atomas

He is the English Chemist who performed a number of experiments that eventually led to the acceptance of the idea of atoms.

• John Dalton

• Albert Einstein

• Neils Bhor

Atoms are indivisible and indestructible particles.

• TRUE

• FALSE

The atoms of different elements are the same.

• TRUE

• FALSE

These are formed by the joining of atoms of two or more elements.

• compound

• mixture

• molecule