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21 Cards in this Set
- Front
- Back
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During this, the form of a substance is altered but not its identity
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Physical Change
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This is a group of atoms that are joined together by chemical bonds
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Molecule
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A change in matter in which energy is taken in
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Endothermic Change
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An object's what is its mass divided by its volume
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Density
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This is the energy of electrically charged paticles moving from one place to another
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Electrical Energy
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A measure of hte average energy of random motion of particles of matter is...
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Temperature
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A solid block that floats in water has...
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Lower density than water
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A pure substance that cannot be broken down into any other substances by chemical means is called...
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Element
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The formula for the volume of a regular solid is..
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Length x width x height
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This is the ability to do work or cuase change.
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energy
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Name some characetristics of atoms
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1. Basic particle of al elements
2. Combine with other atoms 3. Small |
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A chemical bond is
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The force of attracrtion between atoms
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the formula for density is
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Mass over volume
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This is a homogeneous mixture that is very evenly mixed
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Solution
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What is weight?
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the force of gravity on an object
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Every chemical o physical change in matter includes a change in this
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Energy
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A measurement of the amount of matter in an object
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Mass
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name some physical properties of an element
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Hardness, texture, liquid, gas, solid, color, shape
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A cubic centitmeter is a unit for measure what?
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Volume
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The energy of matter in motion is called...
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Kinetic
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Name some characteristics of a compound
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1. Two or more pure substances
2. Different properities for the elements that formed it 3. Represented by a chemical formula |
