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# Properties of Matter

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## Science Rocks

on 13 November 2016

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#### Transcript of Properties of Matter

Properties of Matter
1. What were some properties of the cornstarch and water before they were mixed?

2.
Key Concept
How were the properties of the mixture different from the original properties of the cornstarch and water?
Spring vs. Fall
How can you calculate density?
Copy the following in your science journal.
How can you describe a substance?
Purpose: To demonstrate how physical properties of a mixture can differ from those of the substances from which it is made.
How would you group these items?
Cereal Juice
Rice Chicken
Eggs Strawberries
Watermelon Apples
Spaghetti Ice cream

What are physical properties?
Investigation Time
Create a graphic organizer for physical and chemical properties. Today we will focus on physical properties.
Find the density of the objects
Object 1
Mass - 6.5g
Volume - 1,25mL

Object 2
Mass - 8.65g
Volume - 2.50mL

With your elbow partner, come up with two ways to group these items.
First, I want you to brainstorm a list of items that you're familiar with that are made by adding two or more substances.
Any characteristic of matter that you can observe without changing the identity of substances that make it up is a
physical property
.
Size, color, temperature, state of matter are all physical properties.
Use the organizer to organize your notes about the properties of matter.

Okay, now the fun part.
1. Using a small plastic spoon, measure two spoonfuls of cornstarch into a cup . What does the cornstarch look like?

2. Slowly stir one spoonful of water into the cup containing the cornstarch. Gently roll the new substance around in the cup with your finger.
Measurements
Mass (g)
Length (cm)
Height (cm)
Width (cm)

Use a ruler to measure the length, width, and height of the box.
Calculate the volume by using the following equation

Find the mass of the box by placing it on the scale.
Now you can calculate the density.
Density = mass/volume

Volume = length x width x height
What is a chemical property?
A
chemical property
is the ability or inability of a substance to combine with or change into one or more new substances.
What are physical changes?
A change in the size, shape, form, or state of matter that does not change the matter's identity is a
physical change
.
Examples of Physical Change
Dissolving

Changing State

How many words can you type?
What do you know?
Write 3 things you know about elements in your science journal.

Please share those items with your elbow partner. Be ready to share what you discussed.
How is the periodic table organized?

Each group has 6 pieces of paper.

Write the following elements on each card: beryllium, sodium, iron, zinc, aluminum, and oxygen at the top of a card.

For each element find the following information: symbol, atomic number, atomic mass, state of matter, and element type.

The Periodic Table
What is the periodic table?

What does each block on the periodic table list?

How is an atomic number different from an atomic mass?

Guiding Questions
What does the green color show on the periodic table?

Where are metals, nonmetals, and metalloids on the periodic table?

Create a Venn diagram for metals and nonmetals.
1. Reactive Nonmetals and Metals pg. 17

2. Other Metals

3. Other Nonmetals

4. Metalloids and Hydrogen

A row of elements across the periodic table is called a
period.

Elements in the same column are called a
group
or a
family
.
Each element is represented by a
symbol
.

The
atomic number
of an element is the number of protons in the nucleus of a atom.
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