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Top 25 Interesting Facts we learned in Science (7th and 8th

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Alexis Jameson

on 3 June 2014

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Transcript of Top 25 Interesting Facts we learned in Science (7th and 8th

Different types of clouds can be associated with different types of weather.
The three main clouds are stratus, cumulus, and cirrus.
fair weather, rain, or snow, (also fog).
fair weather or thunderstorms.
Fair weather, and can indicate approaching storm.

Clouds and weather
Hurricane is a storm with a violent wind, in particular a tropical cyclone in the Caribbean.

Tornado is a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.
Hurricane v.s Tornado
I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma.

III. For every action there is an equal and opposite reaction.
Newton's Laws
Humidity is the amount of water vapor in the air

Relative Humidity is the amount of measured water vapor
Difference between Relative Humidity and Humidity
These are the phases of the moon. The phases of the moon change by the position of the Sun, Earth, and Moon.
(This was one of my favorite things to learn. -Lexi)
24: The phases of the Moon

There are three different types of volcanoes


-Cinder Cone


Types of Volcanoes
Seismic waves must reach three or more seismograph stations, for the location of the epicenter to be determined. (This was also one of my favorites! -Lexi)
Location of epicenters
Index fossils are the remains of species that exited on Earth for relatively short periods of time.

Scientists use fossils to determine what the environment of an area was like long ago.
Index Fossils
Top 25 Interesting Facts we learned in Science (7th and 8th grade!)
Four types of Fronts
The Ozone Layer
Low air mass is bad

High air mass is good
Air masses
Climate is a measure of the average pattern of variation in temperature, humidity, atmospheric pressure, wind, and precipitationin in a given region over long periods of time.
Climate vs Weather
Moh's Scale of Hardness
There are three different types of faults.
The three faults are
Normal Faults
Tensional forces. This is a rock stretched by forces.
Reverse Faults
These rocks break when forces are pushing from opposite directions.
Strike- slip Faults
These are rocks on either side of the fault that move past each other without much up or down movement.
Types of Faults
There are three different types of rocks.

A tide is the alternating rising and falling of the sea. They are normally caused by the gravitational forces of the moon, and the position of the Earth, moon, and sun. The types of tides are low tides, near tides, spring tides, opposite tides, and neap tides .
23: Types of Tides
22: Ultraviolet Radiation
Topographic maps show different elevations on Earth's surface.
Topographic Maps
This is the life cycle of stars below. Stars are first started at the Nebula.
Life Cycle of Stars
Meteorologists gather data from Earth's surface, it is recorded on a map using a combination of symbols making a station model.
Shows weather conditions at certain locations on the surface of Earth.
Used to forecat weather.

Station Model
We learned the difference between absolute magnitude and apparent magnitude. Absolute magnitude is the measure of amount of light seen from Earth. Apparent magnitude is the measure of amount of light received on Earth.
Absolute and Apparent Magnitude
Layers of the Atmosphere
By: Katie Geisler, Lexi Jameson, and Kati Garibian

We learned how to identify different types of minerals hardness by using Moh's Scale of Hardness by using things such as your fingernail, a penny, and a nail. (etc.)
The ozone layer is very important for us.
Ozone is made up of oxygen and the ozone layer contains high concentration of ozone and blocks away the Sun's harmful energy.
Also absorbs ultraviolet radiation that enters the atmosphere.
If you have too much exposure to ultraviolet radiation it can cause cancer or damage your skin.

The large, circular- shaped opening formed when the top of a volcano collapses is called the caldera.

25: Types of Rocks
1. Igneous Rocks
An igneous rock formed through the cooling of magma or lava. Igneous rocks are classified as instrusive (form by the crystallization of magma at a depth within the Earth, and large crystals are visible) or extrusive (form when magma makes its way to Earth's surface. If the magma cools quickly, then no minerals will form, therefore no crystals are visible) They are either basaltic, granitic, or andestic.
2. Sedimentary Rocks
3. Metamorphic Rock
Thanks For Watching!!
If exposed to ultraviolet radiation can cause skin cancer
Weather is the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc.
Sedimentary rocks are rocks formed when sediments are pressed and cemented together, or when minerals form from solution. They are formed in layers, oldest on the bottom and youngest on the top

Cold front

Stationary front

Warm front

Occluded front
A metamorphic rock is a rock
that is formed because of changes in temperature or pressure. Metamorphic rocks are classified as foliated or nonfoliated rock.
Radiation, Conduction, and Convection

Radiation- is energy that is transferred in the form of rays or waves.
Conduction- is the transfer of energy that occurs when molecules bump into one another.
Convection- is the transfer of heat by the flow of material.
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