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Everything is made of matter whether biotic (living) or abiotic (non-living).
Characteristic properties of matter are the same no matter what the size or shape.
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When a substance goes through a physical change or change in appearance, its chemical make-up and chemical properties do not change.
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Many substances share characteristic properties like melting point, texture, etc. so you may need to study 2 or 3 characteristics to accurately identify a substance.
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Possible Essay: Explain the difference between atoms and molecules.
Atoms are the smallest particles of an element. Atoms can combine with other atoms to form molecules. A molecule is a group of atoms that are joined together and act as a single unit.
Molecules can vary in size from just two atoms to billions of atoms. Atoms within a molecule are held together by chemical bonds.
Vocabulary. Be able to define and give examples of each. See your notes.
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Matter
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Atom
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Element
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Molecule
Compound
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Chemical bonds
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Mixture
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Solution
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Pure substance
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Characteristic property
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Physical property
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Chemical property
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Physical change
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Chemical change
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States of Matter: solids, liquids, and gases. o What they look like, volume, shape, how they move (use thermal energy in moving)
Review P21 1-5 Questions and answers.
Review Video Quiz on Properties of Matter
Be able to determine if something is undergoing a physical or a chemical change .
Be able to define and understand the following terms: See your notes.
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Mass o Use a triple beam balance, Units: grams or kilograms
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Weight o Use a scale, Units: pounds
HINT: Know the difference between your weight on Earth and your weight on the moon and your mass on Earth and your mass on the moon (Essay).
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Volume o Solids, cubes – use a metric ruler to measure length x width x height, Units: cm 3 o Solids, irregular shape (ex. marble) - use a graduated cylinder, Units: mL o
Liquids – use a graduated cylinder, Units: milliliters, liters
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Density o Mass (g) divided by Volume (mL)

o Understand that when something is more dense than water (or whatever it is put in), it will sink. If it is less dense, it will float.