Physical Science Chapter 2 Review Holt

A ___________ mixture appears to be made of one type of substance, but is not.  

In the chemical formula of water (H2O), how many different ATOMS are present?

A _____________ is a substance made of many different things. 

______ is when a gas becomes a liquid, or when a liquid becomes a solid. 

Law of conservation of mass states that mass cannot be created or _____. 

In the chemical formula of water (H2O), how many different ELEMENTS are present?

Everything listed on the periodic table are called _________

Thekinetic theory states that at the same temperature, heavier particles move _____

Matter has _______ and _________. 

___________ must be added to cause melting or evaporation. 

Which one of these has the LEAST amount of strength between their molecules?

The picture on the left represents atoms in a________. 

This is when a solid becomes a gas without going through the liquid form first. 

When you add two or more elements together, you have created a ________.

The study of what things are made of and how they react is called 

Solid, liquid and gas are states of _______. 

The kinetic theory states that the higher the temperature, the _______ the particlesmove.

The smallest unit of an element is called __________