SCIENCE 7 REVIEW

Mathematical models are smaller and simpler representations of a thing being studied.

• TRUE

• FALSE

Physical models tie together many ideas to explain a phenomenon or event.

• TRUE

• FALSE

The particle model of matter is a fundamental concept in science that describes the nature of all matter.

• TRUE

• FALSE

All matter is composed of tiny, invisible particles.

• TRUE

• FALSE

There are only two states of matter.

• TRUE

• FALSE

Who proposed the Solid Sphere Model?

• Erwin Schrodinger

• J.J. Thomson

• . John Dalton

• Niels Bohr

An atom is a ball of positive charge with negative electrons embedded in it.

• Nuclear model

• Plum Pudding Model

• Planetary Model

• Quantum Model

Particles are closely packed, but not in a fixed, orderly pattern.

• Solid

• Liquid

• Gas

• None of the above

It has a fixed volume, as the particles are closely arranged and do not easily compressed.

• Solid

• Liquid

• Gas

• None of the above

It maintains a definite shape and volume, as the particles are tightly packed and cannot easily change the position.

• Solid

• Liquid

• Gas

• None of the above