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Physical Science Chapter 2

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Presentation transcript:

You will need 7 Index Cards Chastain - 2017 Vocabulary On-Level You will need 7 Index Cards Chastain - 2017

Standards a. Develop and use a model to compare and contrast pure substances (elements and compounds) and mixtures. (Clarification statement: Include heterogeneous and homogeneous mixtures. Types of bonds and compounds will be addressed in high school physical science.)

Atoms The tiny particles that are the basic building blocks of all matter. Atoms can be combined with other atoms to form molecules, They cannot be divided into smaller parts by ordinary means.

What is an atom? https://www.youtube.com/watch?v=R1RMV5qhwyE

Molecules A Particle made of two or more atoms joined by chemical bonds. Example – H2O (Water)

Elements An element is a pure substance that is made from a single type of atom. It cannot be separated into a more simple substance.

Compounds A pure substance made of two or more elements chemically combined giving them different properties.

Elements and Compounds https://www.youtube.com/watch?v=avgFqlNML5o

Pure Substance A substance that is made of only one type of atom or only one type of molecule.

Heterogeneous Mixtures A heterogeneous mixture is made of different substances that remain physically separate. You can see the individual parts.

Homogeneous Mixtures A mixture which has uniform composition and properties throughout. You can not see individual parts Example: Air, Salt Water

Evaluate: Pure Substances and Mixtures https://www.youtube.com/watch?v=88MBCyiaPSM