gifts from the past what are the gifts from the past?
TRANSCRIPT
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GIFTS FROM THE PAST
What are the gifts from the past?
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1. Sketch the fossil.2. List inferences you can make about this organism.3. What 2 pieces of information would you like to know about this fossil or organism?
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Ammonites!
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1. Sketch the fossil.2. List inferences you can make about this organism.3. What 2 pieces of information would you like to know about this fossil or organism?
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Gifts From the PastWhat is a fossil? Fossils are traces of
once living organisms. Fossils include: Trace fossils: indirect evidence left behind such as a
footprint, leaf print or burrow. Cast: when minerals fill the space left behind by a decayed
organism. Mold: when an empty space is left after the organism
decays. Petrified: minerals have replaced the hard parts of bone or
wood. Amber/ice: the entire organism is encased and preserved.
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Gifts From the PastCheck for Understanding: Write a paragraph explaining how FOSSILS are
“gifts from the past”. Use the “ClEvR” method when writing your
paragraph: Claim Evidence Reasoning
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ClEvR Example
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Gifts From the Past
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Observe the fossils
• What questions do you have about these?
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How is this road cut in Eastern Washington a “gift from the past”?
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What can you infer from these rock layers?
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Gifts From the Past• Earth’s physical features, such as rock layers, are
also gifts from the past because they give us clues as to what the ancient earth was like….. Ash and/or lava indicate volcanic activity. Rock scars, kettle lakes and glacial till indicate
glacial activity. Sandstone, slate, shale and clay indicate aquatic
environments. Limestone indicates a previously marine
environment.
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Gifts From the PastCheck for Understanding: Write a paragraph explaining how EARTH’S PHYSICAL
FEATURES are “gifts from the past”. Be sure to explain “relative age” in your answer. Be sure to discuss how different features tell us a story
about ancient earth. Use the “ClEvR” method when writing your paragraph:
Claim Evidence Reasoning
Include a labeled sketch with your paragraph.
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Gifts From the Past 95% of all life that has ever existed on earth is
gone. Only 250,000 to 300,000 fossils of extinct species
have been identified. The oldest known fossil is about 540 million years
old. How old is earth??? Fossils are indeed rare gifts from the past. Fossils only give us a tiny glimpse into the past. Rock layers tell us A LOT about Earth’s past!!
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Gifts From the Past Select your best paragraph from today’s lesson.
Rewrite this paragraph on a single sheet of paper.
Trade papers with your desk partner.
Provide feedback (positive and constructive) by annotating your partner’s paragraph.
Return paper to its owner.
Rewrite your paragraph, taking into account the peer review.
Turn in!