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Science Words
States of Matter
Matter
Atoms
Periodic Table
100
In science, steps used to solve a problem or experiment.
What is the scientific method?
100
The temperature at which a substance changes from a solid to a liquid.
What is melting point?
100
Matter that always has exactly the same composition.
What is a pure substance?
100
Positively charged subatomic particles.
What is a proton?
100
The arrangement of elements in columns, based on properties that repeat.
What is the periodic table?
200
A prediction, or educated guess.
What is a hypothesis?
200
When a solid changes directly to a gas.
What is sublimation?
200
A substance that is made up of one kind of atom.
What is an element?
200
Negatively charged subatomic particles.
What is electrons?
200
The general name for a column of elements in a periodic table.
What is group (family)?
300
The data (in words) you collect during an experiment.
What is observations?
300
The temperature at which a substance changes from a liquid to a gas.
What is boiling point?
300
A substance that is made of two or more types of atoms bonded together.
What is a compound?
300
The unit used to show the mass of an atom.
What is atomic mass unit (AMU)?
300
Elements that are poor conductors of heat and electric current.
What is a nonmetal?
400
A way of expressing numbers that are either very big or very small.
What is scientific notation?
400
Changing from a gas straight to a solid.
What is deposition?
400
A type of mixture that has a varying composition.
What is heterogeneous mixture?
400
Gaining or losing electrons forms charged particles.
What is an ion?
400
An electron in the outer energy level of an atom.
What is a valence electron?
500
The experimental steps in a lab.
What is procedure?
500
The state of matter with a definite shape and a definite volume.
What is a solid?
500
A type of mixture that is the same throughout.
What is homogenous mixture?
500
Atoms of a given element that have different numbers of neutrons.
What is an isotope?
500
The group of nonmetals that seldom react because they have eight valence electrons.
What are the noble gases?