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7th Grade Matter

QuestionAnswer
Protons have a ______ charge? positive charge
Electrons have a ______ charge? negative charge
Neutrons have a _______ charge? neutral charge
What is the number of protons in an atom called? the atomic number
Which atomic particles will you find inside of the nucleus of an atom? proton; protons and neutrons are located in the nucleus of an atom. Electrons orbit the nucleus.
An atom with a neutral charge has the same number of... protons and electrons
What is a measure of how much matter something contains? mass
What is the change called when the matter remains the same kind of matter and no new substances are formed? physical change
What is the change called when the matter changes into a different kind of matter and new substances are formed in result of the change? chemical change
What is the ability to pass energy from one to another called? conductivity
What are the three parts to conductivity? heat, electricity, sound
What is combustibility? the ability to burn
What is volume? the amount of space an object takes up
What is an atom? the smallest particle of an element that has the chemical properties of the element.
What is substance? a material that always has the same make-up and properties.
What is density? the amount of mass in a certain volume of matter. It is equal to the mass divided by the volume.
What are molecules? linked atoms, the smallest part of a compound.
What do atoms exchange with each other when they bond? electrons
Which state(s) of matter has/have NO certain size (volume)? gas
Which state(s) of matter has/have (a) certain size (volume)? liquid and solid
What are the three states of matter? solid, liquid and gas
What are atoms? building blocks of matter
What is a solution? mixed substances
What are three properties of matter? mass, volume, and density
Created by: alyazia
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