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Chemistry is the study of matter and
energy. Chemists are the scientists who
often find explanations to everyday events
by examining particles of matter at the
submicroscopic level. Although chemists
have identified and classified millions of
particles, they have discovered that all
these particles fall into a small number of
categories, such as atoms and molecules.
In the Discovering Matter Unit, you will
explore
the
interactions
between
submicroscopic particles of matter to
identify the categories that chemists use
routinely to classify matter.
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Introduction
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What Do You Think?
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What do you think matter is?
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2. _____________________________
2.
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4.
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5.
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6. _____________________________
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Write your own definition for the following terms. This is an exercise for you to express
your own ideas.
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Macroscopic level
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Microscopic level
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Submicroscopic level
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List 6 things in the room that ARE NOT
matter
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List 6 things in the room that are matter
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Discussion With the Teacher
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What is Macroscopic, Microscopic and Submicroscopic?
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In the area below, draw what you think water looks from these different perspectives
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Submicroscopic level
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Macroscopic level
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What Do You Think?
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Before using the Classifying Matter simulation, draw MACROSCOPIC pictures of each of
the substances. Please write down your observations of the substances as well.
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Water
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Copper
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Oil
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Sodium
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Table Salt
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Baking Soda
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Drawing Submicroscopic Representations
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Now, select three of the six substances and draw what you think they look like from a
submicroscopic view. Remember that there are no incorrect answers to this exercise. It is an
opportunity for you to apply what you might already know and allow you to creatively express
your ideas.
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Substance 1 ________________________
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Substance 2 ________________________
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Substance 3 ________________________
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Water
Sodium
Copper
Table Salt
Oil
Baking soda.
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Simulation
substances:
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The Classifying Matter
contains the following
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You may be familiar with these
substances on a macroscopic level in your
everyday life and perhaps you have
noticed similarities and differences
between their properties.
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In this simulation activity, you will
characterize these substances on both the
macroscopic and submicroscopic levels,
and you will also discover how chemists
formally classify each of them according
to their submicroscopic similarities.
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Discovering Matter Simulation Activity 1
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Classifying Matter Simulation Activity
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As instructed by your teacher,
open the Discovering Matter
Simulation and take a few
moments
to
examine
the
simulation. Familiarize yourself
with the layout of the screen and
the function of each window.
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While using the simulation, draw SUBMICROSCOPIC pictures for each substance. Also,
please list observations about each of the substances below your picture. Please note the
identity of the substances and their behavior.
Sodium
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Water
Observations about Sodium
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Observations about Water
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Salt
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Copper
Observations about Salt
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Observations about Copper
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Baking Soda
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Oil
Observations about Baking Soda
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Observations about Oil
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Compare the pictures you drew before and after viewing the Classifying Matter
simulation. How did you change your pictures using your observations of the
simulations?
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As previously discussed, chemists have developed a system to classify all substances into a
few specific categories. Using your observations from the submicroscopic views in the
simulation, brainstorm three possible categories that would allow you to classify the six
substances in the simulation.
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On the next page, please follow your teacher’s example on how to group the substances.
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Teacher Demo
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Diagram of the Substances
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How are the substances in this
group similar?
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Group 2: ________________________________
Diagram of the Substances
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Substances
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How are the substances in this
group similar?
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Substances
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Group 1: ________________________________
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Student Work
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Diagram of the Substances
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How are the substances in this
group similar?
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Group 2: ________________________________
Diagram of the Substances
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Substances
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How are the substances in this
group similar?
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Substances
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Group 1: ________________________________
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