| 2.1 |
Matter
Has Physical and Chemical Properties |
| 2.1a |
Understanding
Physical Properties |
Summary:
Various examples of physical properties and changes are given. |
Duration:
3.52. |
| 2.1b |
Understanding
Chemical Properties |
Summary: A chemical property is defined as the tendency of a
substance to change into a different substance. |
Duration:
7:51. |
| 2.1c |
Kai
and Maile: Fire Water |
Summary: Kai and Maile show how the Fire Water Hands-On Chemistry
activity from the textbook can be used to show both physical
and chemical changes. |
Duration: 2:25. |
| 2.1d |
Distinguishing Physical and Chemical Changes |
Summary: Examples of both physical and chemical changes are
given. Evidence that suggests one change over the other is presented. |
Duration: 7:25. |
| 2.2 |
Atoms
Are the Fundamental Components of Elements |
| 2.2a |
Elements
and the Periodic Table |
Summary:
The nature of elements and how these elements are listed in
the periodic table are discussed. |
Duration:
6:31. |
| 2.3 |
Elements
Can Combine to Form Compounds |
| 2.3a |
Compounds
are Made From Elements |
Summary:
A compound is a material made of at least two different elements.
How a compound is uniquely different from the elements from
which it is made is discussed. |
Duration:
8:01. |
| 2.3b |
Kai and
Maile: Oxygen Bubble Burst |
Summary:
Kai and Maile demonstrate the Oxygen Bubble Bursts Hands-On
Chemistry activity. Note that a long match stick should be used
so that the flame that flares up in the yeast-containing glass
doesn’t give you a burn. |
Duration:
2:53. |
| 2.3c |
Naming
Compounds |
Summary:
A few of the simpler rules used for naming compounds are presented. |
Duration:
3:22. |
| 2.4 |
Most
Materials Are Mixtures |
| 2.4a |
An Introduction
to Mixtures |
Summary:
Mixtures are defined and examples are given. The formation of
a mixture is noted to be a physical change. |
Duration:
5:15. |
| 2.4b |
Separating
Mixtures |
Summary:
The components of a mixture are separated from one another by
taking advantage of differences in their physical properties.
Various examples are shown. |
Duration:
6:17. |
| 2.4c |
Kai and
Maile: Bottoms Up |
Summary:
Kai and Maile show the set-up for performing the Hands-On Chemistry
activity entitled “Bottoms Up and Bubbles Out”. Various
safety features are also discussed. |
Duration:
2:46. |
| 2.5 |
Chemists Classify Matter as Pure or Impure |
| 2.5 |
Classifying
Matter |
Summary:
Different ways that chemists classify matter are discussed.
Note that 100% purity for any macroscopic sample of a material
is an ideal state that cannot be practically attained. |
Duration:
11:52. |
| 2.6 |
Elements
Are Organized in the Periodic Table by Their Properties |
| 2.6a |
Organizing
the Elements,
Part I |
Summary: Consistent patterns are observed when the elements
are listed in order of increasing atomic weight. Note that the
author refers to “red lines” that on the compressed
video actually look blue. |
Duration: 11:34. |
| 2.6a |
Organizing
the Elements,
Part II |
Summary: How the patterns discussed in the previous video lesson
can be conveniently shown on a piece of paper is discussed.
The resulting organization is the periodic table. |
Duration:
12:40. |
