Objectives Covered Today
6. Define a polyatomic ion
7. C4.2c Name compounds containing a
8. C4.2d Given the name of a compound
containing a polyatomic ion, write its formula.
Define a po
How long have people been interested in
understanding matter and its structure?
A. Thousands of years
B. Hundreds of years
C. A few years
History of Atomic Structure
Station 1: It all Greek to me
When: 400 BC - More than
Elements, Compounds, and
By Liz LaRosa 5th Grade Science
A sample of matter that has definite
chemical and physical properties.
pure substance that cannot be separated
Chapter 3: The Biosphere
The Study of Ecology
What is Ecology?
Ecology is the scientific study of
interactions among organisms and
between organisms and their
Why do we study ecology?
We live in the natural world and use its
Atoms and The Periodic Table
Building blocks of the Universe
Matter is made of atoms
From Alchemy to Science
In 1808, John Dalton proposed an
explanation for the magic of chemistry
He reasoned that elements were composed of
atoms & that only w
Unit 3: Elements,
Matter is stuff: anything that has mass and takes up space (has
Matter is everything: you, me, a tree
Matter can be found in different states
Matter can change from one state to another by going
ADDITIONAL HUMAN EFFECTS ON THE ENVIRONMENT
DOWNLOAD THIS AND PRESS F5 TO START THE
PRESENTATION (THERE ARE SOME .GIFS ON HERE YOU NEED TO
SEE TO BE ABLE TO ANSWER SOME QUESTIONS)
Aral Sea Warm-up
Write and answer the
following questions in your
The Metric System
The metric system is an internationally
standardized system of units of
measurement, Referred to as SI (System
The metric/SI system is based on a base
unit and prefixes.
Kilo - 1000
Hecto - 100
Properties of Water
A water molecule (H2O), is
made up of three atoms -one oxygen and two hydrogen.
Water is Polar
In each water molecule, the o
IONS are atoms or groups
of atoms with a positive
or negative charge.
When an atom or molecule gains or
loses an electron it becomes an ion.
A cation has lost an electron(s) and
therefore has a positive charge
Mg + 2e- Mg2+
An anion has gai
Why is Genetics interesting?
Epistasis ee (B or
Introduction to Genetics
- Chapter 11
What is Inheritance?
Every living thing has a set
of characteristics inherited
from its parent or parents.
Genetics is the scient