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50 Cards in this Set
- Front
- Back
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PHYSICAL SCIENCE
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The study of what things are made of and how things work.
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boil
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To change from a liquid to a gaseous state, producing bubbles of gas that rise to the surface of the liquid.
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give off
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To send forth, emit or discharge
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solution
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A mixture in which one substance dissolves into another
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electric current
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A flow of electric charge
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vibration
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matter moving back and forth quickly which causes sound
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refraction
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The bending of light
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three states of matter
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The three states of matter are solid, liquid and gas.
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solid
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Material that takes up a definite amount of space and has a definite shape.
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liquid
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Material that takes up a definite amount of space, but takes the shape of its container.
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gas
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Material that spreads out to take up the amount of space that is available.
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mixture
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A combination of two or more pure substances that can be easily separated.
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solution
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A mixture in which the different kinds of matter are spread out evenly and cannot be easily separated.
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reflection
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The bouncing of light off a surface
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refraction
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The bending of light
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matter
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Anything that has mass and takes up space.
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convex lens
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A lens that is rounded and curves outward.
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concave lens
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A lens that is "caved in" or curved inward.
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transparent
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Describes a material that allows most light to pass through.
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translucent
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Describes a material that allows some light to pass through.
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opaque
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Describes a material that prevents all light from passing through it.
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force
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A push or pull on an object
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energy
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The ability to work
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solar energy
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Energy that comes from the sun
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mechanical energy
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The type of energy that moves things.
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potential energy
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stored energy; energy of position
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kinetic energy
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energy of motion
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chemical change
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when matter changes from one type to another, taking on a new identity
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chemical properties
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the ability of matter to go through a chemical change
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condense
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to change from a gas state to a liquid state
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density
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the measure of how much matter there is in a certain amount of space
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physical change
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a change in the shape, size, temperature and/or form of a substance
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physical property
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a characteristic of matter that can be measured without changing the matter
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conduction
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the movement of heat or electricity through a solid material
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convection
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the flow of heat energy through the movement of atoms in fluids
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thermal energy
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energy that comes from the sun or a flow of energy that is moving from one state to another causing a rise in temperature
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generator
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a machine that converts mechanical energy into electricity
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insulators
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materials that does not allow heat or electric current to flow through it easily
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parallel circuit
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a circuit that allows electricity to follow more than one path
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series circuit
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a circuit that allows electricity to flow through each part on one path
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chemical energy
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a form of stored energy that can be converted to other forms of energy in order to do work
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repel
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to push back or away by a force
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attract
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to pull or draw by physical force
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pitch
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how high or low a sound is
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texture
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the feel of a surface
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friction
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the force that acts when tow things rub together
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transmit
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to allow the passage of something such as light
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newton
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a unit used to measure force
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molecule
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two or more atoms joined together
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atom
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the smallest part of a substance that has the same properties as the substance
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