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What is Matter? (Part 1 – Glencoe chapter 18-1). I. Chemistry The study of matter and how it changes Differences in material properties relate to what.

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Presentation on theme: "What is Matter? (Part 1 – Glencoe chapter 18-1). I. Chemistry The study of matter and how it changes Differences in material properties relate to what."— Presentation transcript:

1 What is Matter? (Part 1 – Glencoe chapter 18-1)

2 I. Chemistry The study of matter and how it changes Differences in material properties relate to what the materials are made of

3 A. Matter Anything that has mass and takes up space Examples of matter  wood, water, air, you

4 A. Matter Examples NOT matter  electricity, sound, light -NO volume (takes no space), -NO mass

5 A. Matter 1. Element – substance that cannot be broken down into simpler parts and retain properties

6 A. Matter 2. Atom – smallest unit of an element

7 A. Matter 3. Compound – substance made of atoms of more than one element bound together  contains unique properties from components Sodium Metal + Chlorine gas = Sodium Chloride

8 A. Matter 4. Molecule – smallest unit of a substance that behaves like the substance  can be 1 or more elements MethaneOxygen gas

9 A. Matter 5. Chemical formula – chemical symbols and number of atoms of each type of element found in a substance Example: H 2 O -- water  subscript = number of atoms of an element  2 hydrogen, 1 oxygen

10 B. Pure substance or mixture 1. Pure substance – matter with a fixed composition and definite properties  Cannot be broken down physically Examples: Elements and compounds

11 B. Pure substance or mixture 2. Mixture – combination of more than one pure substance Examples: Air, foods, drinks - Mixtures can be separated

12 B. Pure substance or mixture a. Heterogeneous mixture – not uniform throughout b. Homogeneous mixture – uniform throughout

13 B. Pure substance or mixture c. Miscible – able to dissolve in each other d. Immiscible – not able to dissolve in each other

14 B. Pure substance or mixture 3. Many types of mixtures (examples) a. Gas – liquid mixture  soda pop b. Gas – gas mixture  air c. Solid – solid mixture  steel

15 B. Pure substance or mixture 4. A homogenous mixture that remains constantly and uniformly (same throughout) mixed and has particles that are so small they cannot be seen with a microscope is called a solution. Example: sugar water

16 B. Pure substance or mixture 5. A colloid is a heterogeneous mixture whose particles are not heavy enough to settle to the bottom. Example: milk

17 B. Pure substance or mixture 6. The scattering of a light beam as it passes through a colloid is called the Tyndall effect. Example: fog

18 B. Pure substance or mixture 7. A heterogeneous mixture containing a liquid in which visible particles settle is called a suspension. Examples: Italian dressing Muddy water


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