Chapter 4.pdf

Contents
4
Matter has physical and chemical properties.
4.1 Investigating Matter
4.2 Physical and Chemical Properties
DI
5
The periodic table organizes elements by
patterns in properties and atomic structure.
5.1 Developing the Atomic Theory
5.2 The Elements
5.3 The Periodic Table
DI
6
Elements combine to form ionic compounds
and molecular compounds.
6.1 How Compounds Form
6.2 Names and Formulas of Common Compounds
6.3 Balancing the Hazards and Benefits of Elements
and Compounds DI
Unit Task
Every substance has special properties that may make
it useful or hazardous or both. In this unit, you will
learn about the components that make up different
substances and give them their unique properties. In
your Unit Task, you will design and test a toothpaste
and investigate the properties of the ingredients that
you use.
Essential Question
What properties make one substance different from
another
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