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24 Cards in this Set

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Acid - a compound that usually dissolves in water, has a sour taste, reacts with a base to form a salt, and turns litmus paper red
Base - any of various compounds that react with an acid to form a salt, have a bitter taste, and turn red litmus paper blue
Chemical change
A process in which one or more substances are changed into one or more different substances.
Chemical properties
a material's behaviour at ambient conditions (i.e. room temperature, atmospheric pressure, oxygen-bearing atmosphere).
Concave lens
depressed into the lens
the passage of a reaction to a stimulus through living and especially nerve tissue
a substance or body that can allow electricity, heat, or sound to pass through it
Contract – to make or become smaller <metal contracts when cold>
Expand - to increase in size, number, or amount <substances expand when heated>
motion in a fluid in which the warmer portions rise and the colder portions sink; also : the transfer of heat by this motion
Convex lens
bulging outwards from the lens
a system made up of an ecological community of living things interacting with their environment especially under natural conditions
Environmental changes (human and nature)
Human - the social and cultural conditions that influence the life of a person or human community
Nature - the whole complex of factors (as soil, climate, and living things) that influence the form and the ability to survive of a plant or animal or ecological community
Fossils (relative age)
a trace or print or the remains of a plant or animal of a past age preserved in earth or rock
Relative age places rock units in sequential order, e.g., one rock unit or event is older or younger than another, but by how much is unknown.
Inherited traits
An inherited trait is a particular
genetically determined characteristic or quality that distinguishes somebody.
a material that is a poor conductor of heat or electricity or a device made of such material
Kinetic energy
energy associated with motion
Light reflection
Reflection is the change in direction of a wave front at an interface between two dissimilar media so that the wave front returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves.
Magnetic field
the portion of space near a magnetic body or a body carrying an electric current within which magnetic forces due to the body or current can be detected
the quantity of matter in a body <weight is the force on a mass due to gravity>
Metamorphosis (complete and incomplete)
the process of basic and usually rather sudden change in the form and habits of some animals during transformation from an immature stage (as a tadpole or a caterpillar) to an adult stage (as a frog or a butterfly)
Potential energy
the amount of energy a thing (as a weight raised to a height or a coiled spring) has because of its position or because of the arrangement of its parts
the action or process of radiating; especially : the process of giving off radiant energy in the form of waves or particles
the action by a heavenly body of going round in an orbit b : the time taken to complete one orbit
a category of living things that ranks below a genus, is made up of related individuals able to produce fertile offspring, and is identified by a two-part scientific name
States of matter
The three states of matter are solids, liquids, and gases