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Welcome to Science 11/2

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.

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Welcome to Science 11/2

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  1. 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.

  2. 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

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

  4. 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

  5. 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

  6. 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

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

  8. 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.

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

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