PPT-Earth Systems and Resources

Earth Science Concepts APES Ms Tooker 2015 Geologic time scale Plate tectonics Earthquakes Volcanism Seasons Solar intensity Latitudelongitude Earth Science Concepts Two time scales are used to measure the age of Earth. Formation of the Solar System. Formation of the Solar System. Scientists claim that 4.5 billion years ago there was just a featureless cloud of . gas..mostly. hydrogen and some helium with a little carbon and iron. Key terms:. Solstice: day when the sun appears farthest North or South of the equator. Northern hemisphere receives the most sunlight of the year around June 21 on the summer solstice.. Phase: shape of the moon you see from Earth.. Sky Part II. Depending on the relative sizes and distances of the Sun and a moon, you might see an eclipse like this: . Sun. planet. moon. Solar Eclipses. Or you might see an eclipse like this:. Sun. Mrs. Horn . Earth Science . 2015. Natural Resources. Things found in nature that are useful to people. Examples: food, air, and water. Two Kinds of Resources. Renewable resources- natural resources that can be replaced at the same rate at which they are used. What is Earth Science?. What are the Earth System’s four Spheres?. What are cycles and how do they work?. System. : A kind of model often used to describe the natural world.. Closed System. : ENERGY enters and may leave, but MATTER does not leave. 1. st. period. Solar Eclipse. Moon comes in between the Earth and Sun; annually (1x a year)- blocks sun. Can see the top layer of the sun (corona). Penumbra + Umbra (2 shadows). Most eclipses are partial eclipses. The Sun. What physical features do you notice?. How does the Sun compare to the Earth and Moon?. What does the Sun provide for the Earth?. Physical Characteristics of the Sun. Sunspots. Solar Flare. The Layers of the Earth. The Earth is an oblate spheroid – the . Solid Earth. . . It is composed of a number of . different layers. as determined by deep drilling and . seismic. evidence.. The Four Basic Layers. Oblate Spheroid. Bulges in. the middle. Earth’s Shape. 1. Right distance from the Sun. 2. Right amount of water. 3. Right amount of atmosphere. Why Does Earth Have Life?. The . rotation. of the Earth lasts for . Geological Time Scale. AIM: . How have stratigraphy and radiometric dating been used to construct the geological time scale?. The History of Earth. Earth’s history has been studied through 2 methods:. Created by: Jessica Hernandez. North Hialeah ES – Gr. 4 Teacher/Science . Leader. Department of Mathematics and Science. Office of Academics and Transformation. Earth Science. Rocks . can be divided into three categories: igneous, sedimentary, and metamorphic. Think about the differences in the three types of rocks and the various ways they are formed.. What is Geology. Geo. - Earth. Ology. is the study of. This activity will help us study the earth by learning what it is made of and how it can be changed. 4 layers of the Earth. Crust. Mantle. Inner core. How old is the earth?. How old is our earth?. Aristotle thought the Earth had existed eternally.. Early Romans believed its formation was relatively recent due to no records before the Trojan War.. 1640 – Ussher calculated Earth was created in . Tilted on an axis (N-S pole) 23.5 degrees. Earth moves in space two major ways. Rotation. - spinning of Earth on its axis. West to East, 15 degrees per hour or once per day, counterclockwise. This causes day and night—half the Earth is always lit and have it always dark.