Transcript closereading107

* Key detail/main idea –
underline and circle key words
! I love this part! Great writing or
idea
? Raises a question-possible
discussion for class
?? Something is unclear or
confusing
to
me
.
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The Common Core asks you to be able to cite
and refer to the text. One simple way to do
this is by numbering each paragraph, section
or stanza in the left hand margin. When you
refer to the text, I want you to state which
paragraph you are referring to. The rest of the
class will be able to quickly find the line being
referred to.
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When faced with a full page of text, reading it
can quickly become overwhelming. Breaking
up the text into smaller sections (or chunks)
makes the page much more manageable. You
do this by drawing a horizontal line between
paragraphs to divide the page into smaller
sections.
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When reading science texts, underline
“claims” or key ideas.
Circle “Key terms” in the text. Key terms are
words that: 1. Are defined. 2. Are repeated
throughout the text. 3. If you only circled five
key terms in the entire text, you would have a
pretty good idea about what the entire text is
about
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Summarize each chunk in 10 words or less.
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Use a power verb to describe what the
author is DOING. (For example: Describing,
illustrating, arguing, etc..)
Represent the information with a picture.
Ask questions
Oil and water don’t mix.
You have probably heard this old saying. It isn’t
just folk wisdom, however. It’s chemistry.
Another common expression — like water off of
a duck’s back — illustrates the same basic
principle. The oil on a duck’s feathers repels
water and prevents the bird from getting
soaked in the rain. Naturally oily feathers also
help keep a bird dry as it swims.
Chemistry is just one way to repel water in
nature. Structure, or the shape of things, is
another. To excel at water repellency, the lotus
leaf relies on both.
Unlike water lilies, the lotus holds its leaves and
flowers high above a pond’s surface. Still, each
lotus is amply prepared to fend off a drenching.
The waxy surface of the leaves helps repel water
chemically. But very tiny surface bumps also
afford each leaf physical protection. The closely
spaced bumps are far smaller than the width of
most water droplets. Together, these bumps hold
water droplets above a leaf’s surface, so that
raindrops just bead up on top of them. You might
picture this as something like a person resting on
a bed of tightly spaced nails.
“The leaf of the lotus is one of nature’s most waterrepellent surfaces,” notes Anish Tuteja at the
University of Michigan in Ann Arbor. And he says,
“There’s a lot we can learn from nature.” He should
know. As a materials scientist, he studies how the
structure, composition and other aspects of a material
affect its properties.
By mimicking processes and structures seen in
nature, but using materials created by people, he and
others are developing a new world of super-repellent
surfaces. Scientists call such surfaces omniphobic.
This term combines the Latin word for everything
(omni) with the Greek word for fear (phobia). If
something is omniphobic, it “fears everything.” And
that describes pretty well a surface that repels all
sorts of liquids, including water and oil.
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https://www.youtube.com/watch?feature=pla
yer_embedded&v=ICw5k1tDZSk