Copy of Modeling Matter @Home Lessons 6-7 (Lessons 1.7-1.9)

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Modeling Matter
@Home Lesson 6

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We are going to read this book, Break It
Down.

This book is about
scientists who separate
mixtures in their work.

Modeling Matter @Home Lesson 6

​TURN TO PAGE 17 IN YOUR INVESTIGATION NOTEBOOK AND COMPLETE IT NOW.

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Preview the photos and
diagrams and read some
of the captions beneath
them.

Modeling Matter @Home Lesson 6

You can access a digital version of the book here,

or watch a video read-aloud at tinyurl.com/AMPMM-11

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Read pages 4–9 together as a class and
think about how the text
connects to what you
already know about
mixtures.

Modeling Matter @Home Lesson 6

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What is a fact about
mixtures that you already
knew? SPIN THE WHEEL!

What new information
did you learn? SPIN THE WHEEL!

Modeling Matter @Home Lesson 6

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Now, read the rest of the
book. (Partner A/B & Teacher read aloud)

Modeling Matter @Home Lesson 6

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After you read the book, talk with your partner to answer the following question.

Modeling Matter @Home Lesson 6

What are some ways that scientists in Break It
Down separated substances using differences
in the molecules of the substances?

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One important thing that some scientists do is
find ways to separate mixtures by using the
properties of the molecules that make up the
mixtures.

Modeling Matter @Home Lesson 6

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Look back at the sections about these three
mixtures. Pay special attention to the diagram
in each section.

Modeling Matter @Home Lesson 6

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What does the diagram in each section show?

SPIN THE WHEEL FOR EACH DIAGRAM!

Modeling Matter @Home Lesson 6

ocean water, pages 10-11

blood, pages 12-15

ancient food, pages 16-21

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What properties of substances or properties
of molecules did scientists use to separate
each mixture?

Modeling Matter @Home Lesson 6

Match

Match the following:

• SOLID & LIQUID

OCEAN WATER

BLOOD

ANCIENT FOOD

• OCEAN WATER

• BLOOD

• ANCIENT FOOD

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To separate the blood mixture, scientists used
the properties of the substances (solid & liquid). In contrast, to separate the salt water and the
ancient-food mixture, scientists used a
property of the molecules—size.

Even though scientists can’t see molecules,
they can still use the properties of molecules
to separate a mixture.

Modeling Matter @Home Lesson 6

​IT IS LAB TIME!

​OOPS! Its this kind of lab time!

​Separating Mixtures Lab

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The properties of a substance are determined
by the properties of its molecules.

Modeling Matter @Home Lesson 6

From our investigation and discussion, we have figured
out a new key concept:

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Modeling Matter
@Home Lesson 7

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Chapter 1 Question

Why did the food coloring separate into different
dyes?

Modeling Matter @Home Lesson 7

Remember, we are working to answer this question:

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Modeling Matter @Home Lesson 7

There are many
three-dimensional
models, such as the Fan
Model and the Pasta
Model. Diagrams, like
what you drew and what
we observed in Made of
Matter, are models, too.

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Models help us understand something by
making it simpler and easier to see.

Different models show some things more
accurately than other things.

We’re going to look at three new models today
and evaluate them, which means to judge how
useful or accurate each model is.

Modeling Matter @Home Lesson 7

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You will need a partner to talk with.

Modeling Matter @Home Lesson 7

Each model we will look
at today is a diagram
showing a different idea
about how chromatography works, along with a written
explanation.

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Find the Evaluating Chromatography
Models pages (pp. 28-29) in your Investigation Notebook. We will use these pages to record our evaluations of the three
models.

Read the statements on
pages 28. These
statements can help us
evaluate the models.

Modeling Matter @Home Lesson 7

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Find the Color-Changing Model pages in your Investigation Notebook. (pp. 22-23)

Read the explanation of
the model on the first
page.

Then, look at the diagram
on the second page.

Modeling Matter @Home Lesson 7

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Modeling Matter @Home Lesson 7

​ANSWER THE QUESTIONS ON PAGE 28 TOGETHER AS A CLASS AND FILL IN YOUR WORKSHEET.

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The Color-Changing Model explains a
lot about what we observed.

However, it doesn’t fit
with some important
things we know about
molecules, such as the
fact that molecules in a
substance don’t change
properties (Statement B).

Modeling Matter @Home Lesson 7

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Next, find the Growing Model pages in your Investigation Notebook. (pp. 24-25)

Read the explanation of
the model on the first
page.

Then, look at the diagram
on the second page.

Modeling Matter @Home Lesson 7

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Return to the Evaluating
Chromatography Models page 29.

Discuss the Growing
Model questions with
your partner.

Then, record your
responses to evaluate
the model.

Modeling Matter @Home Lesson 7

​CLASS DISCUSSION OF THE GROWING MODEL ON P. 29.

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Finally, find the Attraction Model on page 29.

Read the explanation of
the model on the first
page.

Then, look at the diagram
on the second page.

Modeling Matter @Home Lesson 7

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Return to the Evaluating
Chromatography Models page 29.

Discuss the Attraction
Model questions with a different partner.

Then, record your
responses to evaluate
the model.

Modeling Matter @Home Lesson 7

​CLASS DISCUSSION OF THE ATTRACTION MODEL ON P. 29.

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Each model is accurate in
some ways, but could
also be revised.

Scientists evaluate
models and revise them
when the models don’t fit
with what they know.

Modeling Matter @Home Lesson 7

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When scientists evaluate models, they assess
how accurate the models are based on what
they know and the evidence they have.

This is different from judging something,
which we do when we say that something is
good or bad.

Modeling Matter @Home Lesson 7

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Now, we will revise our
nanovision models of
chromatography to send
to the president of Good
Food Production, Inc.
Let’s review her latest
message.

Modeling Matter @Home Lesson 7

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Because we have learned even more about
molecules since the last time we responded to
the president, it’s a good idea to revise our
models and explanations.

First, we will add to our nanovision models
everything we’ve learned about molecules and
about separating mixtures.

Modeling Matter @Home Lesson 7

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We will evaluate our own
models to decide how to
revise them.

Let’s look back at the
models we already
evaluated.

Modeling Matter @Home Lesson 7

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The Color-Changing
Model showed that the
water molecules changed
color as they bumped
into the dye molecules.

Modeling Matter @Home Lesson 7

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The Growing Model
showed that the water
molecules made the dye
molecules grow and
stretch up the paper.

Modeling Matter @Home Lesson 7

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The Attraction Model
showed that the water
molecules were attracted
to the dye and the paper.
The water molecules
climbed up the paper and
pulled the dye molecules
with them.

Modeling Matter @Home Lesson 7

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Look back at your Nanovision Model of
Chromatography page where you drew
your model. (Pass back each student's paper).

Think about how your
ideas have changed
since you drew your
model. How do you plan
to revise your model?

Modeling Matter @Home Lesson 7

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If your ideas have changed, your model
might be completely different from
your last version.

Or you might show the
same idea, but this time
you can make your model
clearer by using different
drawings, arrows, or
labels.

Modeling Matter @Home Lesson 7

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Find the Revised Nanovision Model of
Chromatography on page 32 in your Investigation Notebook.

Make your revised
model. Remember to
draw the shapes of the
different molecules in the
key. When you are finished, gently tear this page out and hand it in.

Modeling Matter @Home Lesson 7

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End of @Home Lesson

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Modeling Matter @Home Lesson 7