This document provides an overview of life sciences, earth sciences, and physical sciences. It covers topics such as cells, heredity, evolution, the Earth's surface, water, weather, the atmosphere, energy, sound, and light. Users can click on links to learn more about each topic, with pages providing details on subjects like specialized cells, genes, natural selection, landforms, the hydrosphere, atmospheric gases, forms of energy, the nature of sound and light. Navigation buttons allow returning to the main menu or moving between subtopics.

1. Lets Get Scientific!
A brief overview of life, physical and
earth sciences.
By Joseph Kamps
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Science can teach us so many things about how
the world works, click on the following links to
learn more about that topic.
Life Science Earth Science Physical Science

3. Life Science
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This section of this overview is going to teach
you about life sciences. You will learn about
the following topics.
- Cells
- Heredity
- Evolution
Lets get started!

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Cells
Cells are the basic unit of life, which all living
things are composed.
Some living things are Some living things are
made up of many cells. made up of only one
cell.
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Specialized Cells
Many of the cells in multicellular organisms carry
out specific functions. If a cell does have a
specific function, it is called a specialized cell.
For example, plants have cells
called Chloroplasts. Chloroplasts
help the plant survive by making
food through the process of
photosynthesis.
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Heredity
Everyone you know looks a certain way, because
of the traits that have been passed down to
them in their genes.
Genes also control if
you can or cannot roll
Genes decide the your tongue.
color of you eyes.
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Evolution
Evolution is change in the genetic material of a
population of organisms from one generation
to the next, the three main processes involved
in evolution are:
- Reproduction
- Natural Selection
- Variation
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8. Evolution Continued!
A very good example of natural selection in
evolution would be the peppered moth.
The peppered moth flourished in its white
spotted form, until industries in the area
began to leave soot and dark dust in the
habitat of these moths. Predators soon
eliminated much of the lighter colored moth
and the population of dark peppered moths
remains on the rise today.
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Earth Science
The earth works in many ways, and science can
explain many of the ways the earth works. In
this section we will cover the following topics.
- The earths surface (The Geosphere)
- The water on earth (The Hydrosphere)
- The Weather and Atmosphere
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The Geosphere
The earths surface has many interesting
landforms on it, and it was shaped in many
different ways.
The great lakes are one of the Mountains are also one of
most prominent landforms on the most recognizable
earth and the largest group of landforms, their rocky
freshwater lakes on earth. summits scrape the clouds.
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How was earth shaped?
There are many factors which helped shape the
earth, two of the biggest factors are Glaciers
and Volcanoes.
Glaciers are huge
masses of ice that are
so heavy they scrape
out valleys and are
responsible for many
lakes and rivers.
Next Slide! A Volcano is an opening in the crust of the earth,
where molten rock escapes, forming mountains,
islands and other land forms.

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The Hydrosphere
72 Percent of the earth is water, however only 2-
3% of that amount is drinkable. This water is
found in many different forms across the
globe. Water can be frozen (Bottom Left), as in the ice
caps. Water can be in the form of salt water (Left).
98% of the water on earth is salt water.
Lastly, water can come in the form of Freshwater
(Bottom Right) as seen in the great lakes.
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The Weather
Weather is the current atmospheric condition in a
given region, and occurs due to difference in air
temperature and density from one place to
another. Weather can appear in many different
forms.
In some of weather’s more extreme forms such as
Hurricanes (Left) and Tornados (Right) much damage
to cities and people can be done. Next Slide!

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The Atmosphere
Earth’s Atmosphere is made of layers of gases
held to the earth by the gravitational pull of
the planet. Without the atmosphere, earth
would not be able to support life.
Atmospheric gases scatter
blue light more than other
wavelengths, giving the Earth
a blue halo when seen from
space.
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Physical Science
In this section of the overview we will look at
some of the different aspects of physical
science. The following topics will be covered
in this section.
- Energy
- Sound
- Light
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Energy
Energy comes in many forms, and is the driving
force of almost everything Humans do.
Electrical energy and
heat energy are two
of the most common
forms of energy
found on earth.
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Sound
Sound is vibrations transmitted through a solid
liquid or a gas. The vibrations have frequencies
that are within the range of hearing.
Sound surrounds us in
our daily lives. Can
you think of a time
when you didn’t hear
anything and heard
nothing but complete
silence? Our ears are
always working and
listening.
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Light
Light is just forms of radiation that are visible to
the human eye. The majority of wavelengths
of light are invisible to the naked eye.
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Light Continued!
A beam of white light can be broken into the
different wavelengths of light using a prism,
As you can see white
light is the combination
of all the colors of the
spectrum. The Prism
disperses the white
light into the colors that
make white light.
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overview, click the return to menu button if
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