WARM-Up # 48 THINK ROCKS & WEATHERING Prediction: What is ice wedging? When water in cracks in rocks freezes and expands. Prediction: What is abrasion?

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Presentation transcript:

WARM-Up # 48 THINK ROCKS & WEATHERING Prediction: What is ice wedging? When water in cracks in rocks freezes and expands. Prediction: What is abrasion? The action of rocks grinding against each other and wearing away exposed surfaces. Prediction: What is differential weathering? Process by which softer rocks are worn away leaving harder, more weather resistant rocks.

March 21, Thursday WARM-Up # 49 1.Chemical Weathering 2. Fault Block Mountains 3. Fold Mountains 4. Plateau or Erosion

March 22, Friday WARM-Up # 50 What is the difference between chemical weathering and mechanical weathering? During chemical weathering, the substance of the rock physically changes. Mechanical weathering causes a breakdown of rocks without a change in chemical composition.

March 25, Monday WARM-Up # 51 Write down two new things (related to our science lessons!) you learned from the Play-doh mountains lab and the weathering lab? Your weathering lab will be collected now.

March 26, Tuesday WARM-Up # 52 Based on our science lessons can you describe what may have happened in this picture?

WARM-UP # 53 WHAT ARE THE THREE TYPES OF ROCKS? 1.Igneous 2.Sedimentary 3.Metamorphic

WARM-UP # 54 What is the difference between an extrusive igneous rock and an intrusive igneous rock? What does it mean if the rock’s crystals are large in size? An extrusive rock is formed above the Earth’s surface while an intrusive rock is formed below the Earth’s surface. The more slowly molten rock cools, the larger the igneous rocks crystals will be.

WARM-UP # 55 What are the three different types of igneous rocks based on their compositions? Basaltic, andesitic, and granitic HMWK: Bring in 2 old Crayola crayons April 12, Friday

WARM-UP # 56 Metamorphic rocks can be classified as foliated or non-foliated. What does foliated mean? FOLIATED metamorphic rocks are those in which the minerals have been flattened and pushed down into layers. The layers look like pages in a book. Non-foliated rocks do not have layers. HMWK: Bring in 2 old Crayola crayons

. WARM- UP # 57 How are sedimentary rocks classfied? Sedimentary rocks are classified by their composition and by the manner in which they formed. The three types of sedimentary rocks are Detrital Chemical Organic

WARM-UP # 58 What type of rock is categorized into detrital, chemical, and organic? What does each mean? Sedimentary Rocks are categorized as detrital, chemical, and organic. Detrital - made from the broken fragments of other rocks Chemical - form when dissolved minerals come out of solution Organic - made of the remains of once-living things