Welcome to Science 11/2 Get your HW out. You will be working with a partner to answer three questions that you will find in a book about rocks. You have.

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Presentation transcript:

Welcome to Science 11/2 Get your HW out. You will be working with a partner to answer three questions that you will find in a book about rocks. You have 10 minutes to complete this.

Turn in HW The Global Village If the world’s pop. was 100 people with all of the existing human ratios remaining the same, the village would include: 60 Asians, 12 Europeans, 9 Latin Americans, 5 N. Americans, 1 Oceanian, 13 Africans 50 female/50 male, 80 nonwhite/20 white 20 people would earn 89% of the wealth 25 would live in substandard housing 17 would be unable to read 13 would suffer from malnutrition 1 would die within the year 2 would give birth within the year 2 would have a college education 4 would have a computer

Welcome to Science 11/2 Observe the pictures below. On your paper, list as many similarities as you can about the pictures.

I. Classifying Rocks Observe the rock on your desk. On your paper, list as many descriptions of the rock as you can. When classifying rocks, what 3 characteristics of rocks do geologists study? 1. Mineral Composition (what the rock is made of) 2. Color 3. Texture

II. 90% of Earth’s crust is made of Igneous Rocks. Why? Igneous- comes from the Latin word for “fire” Origin- born from the cooling and hardening of magma & lava

III. Composition & Texture The type of igneous rock that forms depends on what it is made of and how fast it cools. Slow cooling magma/lava = coarse,rough text. Fast cooling magma/lava = smoother, text. Slowest 2nd Slowest Fastest

IV. Igneous Rock Formations Intrusive Rock- magma that has cooled beneath Earth’s surface. Volcanic necks, plutons, batholiths volcanic neck

V. Igneous Rock Formations Extrusive Rock- forms from the cooling of lava on Earth’s surface Why are these rocks important? This is a major process responsible for building new crust.

Assignment: Acrostic Poem Your assignment for tonight is to create an acrostic poem for the word igneous. Here is an example.