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30 Cards in this Set

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