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\nHow Do We Know Temperatures from Thousands of Years Ago?\n

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\n\nPublisher:\n\nScience ABC\n\n\n
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\nResearchers estimate ancient temperatures using data from climate proxy records, i.e., indirect methods to measure temperature through natural archives, such as coral skeletons, tree rings, glacial ice cores, and so on. For example, the...\nResearchers estimate ancient temperatures using data from climate proxy records, i.e., indirect methods to measure temperature through natural archives, such as coral skeletons, tree rings, glacial ice cores, and so on. For example, the ice sheets of polar regions (Greenland, Antarctic, and the North American regions) can help in evaluating historical temperatures. With every year’s snowfall, a new layer of ice builds up on top of the previous one. This layer, and the ice sheets of every subsequent year, are preserved in visible layers. Since layers of snow formed at different temperatures have distinct chemical properties, all of these layers can give us some insight into the existing temperature conditions of that time.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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3:17
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Grade
Pre-K - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nScienceABC\n\n
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Date
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2023
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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temperature, scientists, climate, thousands, time, years, millions, sediment, tree rings, stomata
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Additional Tags

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how do we know temperatures from thousands of years ago, how do scientists know the temperature of the earth 1000 years ago, how do scientists measure temperature in the past, how was temperature measured in ancient times, how do we know historical temperatures, how do scientists measure the average world temperature in past eons?, how long has weather been recorded, how do scientists know how hot or cold the earth was 10 million years ago?, climate proxies, natural archives, co2 levels, temperatures, proxies, researchers, reveal, rings, eons, history, past, year, earth, today, exist, cold, planet, layer, show, story, change
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Best For: Explaining a topic
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