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30 Cards in this Set
- Front
- Back
What is WEIGHT?
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A measure of the force of gravity of an object.
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What is MASS?
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The amount of matter in an object.
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What is the INTERNATIONAL SYSTEM of UNITS?
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How scientists prefer to measure the properties of matter.
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List units measures of volume.
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L, mL, cL
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What is VOLUME?
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The amount of space that matter occupies.
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What is MATTER?
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Anything that has mass and takes up space.
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What is CHEMISTRY?
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The study of the properties of matter and how they change.
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What is a SUBSTANCE?
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A single type of matter that has a specific set of properties.
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Name the two types of Properties.
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Chemical and Physical
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Describe chemical properties.
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A form of potential energy that is stored in chemical bonds between atoms.
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Describe physical properties.
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Characteristics that you can see and feel without changing it into another substance.
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What are ELEMENTS?
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A pure substance that cannot be broken down by any means into another substance.
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What is an ATOM?
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The basic particle from which all elements are made.
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What is a CHEMICAL BOND?
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The force that holds two atoms together.
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What is DENSITY?
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D = M/V
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What are two types of Matter?
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Substances and Mixtures
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What are SUBSTANCES?
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A single type of matter that has a specific set of properties. Includes elements and compounds that are formed by molecules and atoms.
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What are MIXTURES?
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Two or more substances mixed together (not in fixed proportions and not with chemical bonding). Each substance retains its own chemical identity.
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What are HETEROGENEOUS MIXTURES?
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When you can see the mixture.
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What are HOMOGENEOUS MIXTURES?
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When they are so well combined that you cannot see the original ingredients.
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Describe PHYSICAL CHANGES.
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ALWAYS include changes in identity.
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Describe CHEMICAL CHANGES.
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ALWAYS include changes in energy.
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Name the six forms of ENERGY.
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Potential, Kinetic, Chemical, Electromagnetic, Electrical, and Thermal.
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What is POTENTIAL ENERGY?
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Stored energy.
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What is KINETIC ENERGY?
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Energy in motion.
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What is CHEMICAL ENERGY?
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Occurs when particles are arranged in certian ways.
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What is ELECTROMAGNETIC ENERGY?
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The energy associated with electric or magnetic fields.
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What is ELECTRICAL ENERGY?
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Energy that occurs when objects with different electrical charges are separated.
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What is THERMAL ENERGY?
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Energy which is characteristic for thermal neutrons at room temperature.
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Describe ENDOTHERMIC AND EXOTHERMIC Energy.
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Absorbed (Exo) and Given Off (Endo)
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