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Unit 1-Matter

to use a tool to learn more about the volume, length or weight of an object measure
to prevent electricity or heat from passing through insulate
a state of matter with a defined volume but no defined shape liquid
an object's mass divided by its volume; a measure of how many particles are packed together into a certain amount of space density
the amount of matter in an object mass
the chart scientists use to organize and classify all the known elements periodic table
a material with a particular chemical makeup pure substance
an object with a north and south pole that produces a magnetic field magnet
describes a substance that will break down another object upon contact corrosive
a state of matter without any defined volume or shape gas
a particular form that matter can take state of matter
an element or compound chemical
the physical matter of which living or nonliving things are composed substance
a natural, solid substance found in rocks; each mineral has a specific chemical makeup mineral
having to do with the eye or lenses optical
describes materials through which light can travel; materials that can be seen through transparent
having to do with electricity; a form of energy commonly used for lights, electric motors, and heating. electric
a material that transmits energy conductor
describes materials that allow some light to travel through them, but not enough to see through the material translucent
matter with a fixed volume and shape solid
the force of gravity on an object weight
material that has mass and takes up some amount of space matter
to group things based on similar characteristics classify
a shiny, dense substance that easily conducts heat and electricity metal
a property of an object that depends upon the wavelengths of light reflected by the object color
a measure of how hot or cold a substance is temperature
a subatomic particle with a negative charge electron
a subatomic particle with no electric charge, located within the nucleus of the atom neutron
a subatomic particle with a positive charge that is located in the nucleus of an atom proton
a pure substance that cannot be broken down into simpler substances by chemical reactions element
the chemical element consisting of one proton and one electron hydrogen
to bring together; to mix combine
two or more atoms joined together molecule
the number of protons in the nucleus of an atom; atomic number determines the chemical properties of the atom atomic number
the center of an atom containing protons and neutrons nucleus
the smallest unit of an element that has the properties of that element atom
an element that is a greenish gas at room temperature chlorine
density, volume, temperature, mass, weight, color, texture and odor physical properties of matter
wax melts in a candle energy (heat) added to matter
rain on the sidewalk becomes ice energy (heat) removed from matter
water turns to steam on the stove energy (heat) added to matter
3 states of matter solid, liquid and gas
Which state of matter has a lower density? gas
How can water change from one state to another? ice is heated to make water and water is heated to make steam
What will change the property of a material, such as water? changing the state of the material
An ice cube melts to become water in a cup. How are the ice cube and water alike? They have the same mass.
When would the property of a substance change? when you change the state
Are a rock, a glass of water and air made of atoms? yes
Atoms are sometimes called building blocks of matter
3 parts of an atom are: proton, neutron and electron
Atoms are mostly empty space
How many different kinds of atoms are there? Over 100
What makes up the nucleus of an atom proton and neutrons
What orbits outside the nucleus? electrons
Protons have what type of charge? positive
Neutrons have what type of charge? none, they are neutral
Electrons have what type of charge? negative
Created by: Pamela Hebert