'Convection currents' presentation slideshows

How ‘Heat’ Moves Review of past terms: Define “ Energy ”: The ability to do work or cause change. What is the basic unit of measure for energy? Joules . How ‘Heat’ Moves Define “ Heat ”:

Heat flow. Heat is energy: measured in Watts ( = J/s) Temperature is the amount of heat in a material. Measured in degrees Celsius (C o ) Measured in Kelvin (K) 0 K (-273 C o )= material with no heat. Vibration of molecules in a substance. Electromagnetic radiation. Heat flow.

Zoogeography. studying animal distributions (animal geography) father of animal geography/biogeography co-discoverer of theory of natural selection "...every species comes into existence coincident in time and space with a preexisting closely allied species." (1855). Zoogeography.

Conduction, Convection, Radiation, oh my!!. Conduction. Involves objects in direct contact 2 objects in contact are at unequal temperature Example: a wire coat hanger with a marshmallow on it over a fire. Convection.

This is. Jeopardy. Earth Science. Final Jeopardy. Jeopardy. What is granite?. Earth's Interior for 200. Continental crust consists mainly of the rock ______________. Back to Jeopardy. What are geologists?. Earth's Interior for 400.

Structure of the Earth. Layers. Solid Inner Core Molten Outer Core Mesosphere Asthenosphere Lithosphere. 1. Solid Inner Core. Dense, iron-rich material at very high temperatures and pressures probably of the order of 7,000 ° F (4,800° C) and at 3.5 million atmospheres.

Earth’s Crust. Convection currents. Continental drift – idea that continents have moved slowly to their current positions due to convection currents in the mantel. Pangea – the idea that the all land masses on earth were once a single large land mass.

Journey to the Center of Earth. Layers of the Earth. Crust Mantle Outer Core Inner Core. The Crust. Layer that we live on (Lithosphere) 5-25 miles thick Consists of cooled rock Thinnest layer of the earth There are 2 kinds of Crust: Continental (thicker) and Oceanic (thinner). Crust.

Lecture 4. Plate tectonics II. 1. Rates and History of Plate Motion. Ship towing a sensitive magnetometer. Magnetic anomalies: seafloor areas of high and low magnetic values. Mid-Atlantic Ridge. high intensity. low intensity. 2. Rates and History of Plate Motion. Iceland. Mid-Atlantic

Chapter 4. The Earth’s Atmosphere. Chapter 4 Study Guide. 1. Describe the composition of the atmosphere. 2.   Explain why there are different layers in the atmosphere. Describe the vertical layering of the atmosphere. Know the names of the different layers from the Earth’s surface up.

Discovery of Uranus, Neptune, Pluto. The last 3 planets were discovered with telescopes , in the last 150 years or so (too faint to see with eyes) Studied (glimpsed) by Voyager 2, powered by “gravity slingshot” ; explored all Jovian planets

HEAT ENERGY. What is HEAT? Form of energy and measured in JOULES Particles move about more and take up more room if heated – this is why things expand if heated It is also why substances change from: solids liquids gases when heated.

8 th Grade Science LEAP . Assessment PowerPoint Practice. • Convection. Desciption: Heat that moves through a material by actual movement of the material or circular heat flow in a fluid (gas or liquid).

The Flow of Energy— Part one. 17.1. The temperature of lava from a volcano ranges from 550°C to 1400°C. As lava flows, it loses heat and begins to cool. You will learn about heat flow and why some substances cool down or heat up more quickly than others. 17.1. Energy Transformations.

The Changing World. The Restless Earth. The crust is made of about twelve plates . These are like big rafts floating on the semi-molten mantle. Convection currents within the mantle cause the plates to move.

Structure of the Earth. Earth’s Interior.

Hear, Ye! Hear, Ye!. TODAY’S AGENDA . Identify the continents of the world. To learn about Alfred Wegener and Continental Drift. To develop a scientific theory, based on evidence presented to you, as to how the continents of the world arrived at their present locations on the globe.

Thermal Energy and Heat. 3 Ways heat is transferred. Conduction Convection Radiation Overview of the process (Click Here). CONDUCTION. The transfer of thermal energy in materials that are touching. Occurs as particles collide. Conduction. Involves no overall transfer of matter

Renewable Energy. Chapter 13 Freidland Chapter 16 Miller. Case Study – Energy from the moon. Why is this energy called moon energy? Where is this first commercial tidal energy plant in the U.S.? What are the advantages?. Energy. Renewable Energy

Trashketball. What two gases together make up about 99% of Earth’s atmosphere?. Why do convection currents form? . What is the relationship between air pressure and the density of air?. What is the relationship between air temperature and the density of air?.