Inquiry Activity 1.What features can you identify in this photo? 2.Where do you think this photo was taken? 3.If you were an Earth scientist, how could you use this photo in your work?

Let’s see what you remember

Pretest (page 6) 1.T/F: Our solar system consists only of Earth and the sun. 2.Object A is denser than water. If object A is dropped into a cup of water, what will happen to the object? 3.What is Earth know to have that other planets in our solar system are not known to have? a.Volcanoes b.Rings c.Liquid water 4.What is the name of the imaginary horizontal line that goes around Earth’s middle? 5.What is the name of the imaginary vertical line that goes around Earth’s middle? 6.What is a storm that brings strong winds, heavy rains, and coastal flooding?

1.1 What is Earth Science? Today, you will be able to: Define Earth science Describe the formation of Earth and the solar system umb/9/97/The_Earth_seen_from_Apollo_17.jpg/260p x-The_Earth_seen_from_Apollo_17.jpg

Vocabulary (index cards) Earth science Geology Oceanography Meteorology Astronomy Ecology Ecosystem

What is science? System used by humans to learn about the natural world around them When you observe the world around you and ask questions, you act like a scientist. The goal of science is to understand the world around us.

Well … just what is Earth Science all about? media/71/ AD57B.jpg Booth/132/ JPG ptCyl3_I/AAAAAAAACDo/mmtKfBRbJZ0/s160 0/Tide-Pool-Tips-low-tide.jpg u/image43.jpg content/uploads/2010/01/ring_hst_big.j pg

Earth Science is … All the sciences that seek to understand the Earth and the universe around it It includes –Geology (study of the “solid” part of Earth) –Oceanography (study of the ocean) –Meteorology (study of the atmosphere) –Astronomy (study of the universe)

Earth Science & Biology … What’s the connection? Ecology  describes the relationships between organisms, a.k.a. living things, and their environment When studying communities of organisms, the environment is referred to as an ecosystem.

Formation of Earth Most researchers conclude that Earth and the other planets formed at essentially the same time. Nebular Hypothesis – The solar system evolved from an enormous rotating cloud called the solar nebula. – The nebula was composed mostly of hydrogen and helium.

Formation of Earth Nebular Hypothesis –About 5 billion years ago, the nebula began to contract. –It assumed a flat, disk shape with the protosun (pre-Sun) at the center. –Inner planets begin to form from metallic and rocky clumps. –Larger outer planets began forming from fragments with a high percentage of ices.

A. Our solar system began as an enormous cloud of dust and gases made up mostly of hydrogen and helium. B. This cloud (nebula) started to rotate and collapse toward the center of the cloud. Heat was generated in the center. C. Cooling of the nebula caused rocky and metallic materials to form tiny solid particles. D. Repeated collisions of these particles resulted in the formation of asteroid sized bodies. E. These bodies eventually combined to form the four inner planets. The lighter materials and gases formed the four outer planets.

Formation of Earth Layers Form on Earth –As Earth formed, the decay of radioactive elements and heat from high-velocity impacts caused the temperature to increase. –Lighter rocky components floated outward, toward the surface. –Gaseous material escaped from Earth’s interior to produce the primitive atmosphere.

So … why does the Earth have layers? BECAUSE OF DENSITY!!

Word Parts and Meanings (page 5) Prefix Meaning Prefix Meaning Prefix Meaning AntiAstroAtmo BathyBioChromo ChronoConDe DiaEpiEx GeoHemiHydro InInterIso LithoMeteorMicro PetroProtoSeismo StratoSubTele Trans Reverse Depth Time Away from Earth Inside Stone Rock Covering Across Of a star Life Together Over Half Between In the air Primitive Under Vapor Color Undo Out Water Equal Small Earthquake To a distance

Word Parts and Meanings (page 5) SuffixMeaningSuffixMeaning -cline-graphy -logy-meter -nomy-old -scope-sphere -therm-verge Incline Science of Knowledge of Instrument for seeing Heat Description of Measuring Resembling Round Turn

ES Branches (page 6) Fill in the column with the name of each branch and list some of the things that are studied. Geology

Post – Test (page 6) 1.What is Earth Science? 2.Name 4 branches of Earth Science. 3.Why does the Earth have layers? 4.Use the prefixes and suffixes given to you in class to form words that match the following definitions: a.Instrument for seeing small objects b.Instrument for seeing distant objects c.One-half of a planet d.Study of water e.Method of measuring distant events

Homework 1.Number pages 1-50 in your notebook 2.Study for at least 15 minutes