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SCI (weeks 1-2)

Inquiry and matter

QuestionAnswer
an educated guess about an experimental question hypothesis
summaries of what was learned in a scientific experiment conclusions
unchanged independent variable used for comparison (example: using the same temperature for all the ovens in an experiment) control
a part of an experiment that can change variable
the kind of variable an experimenter chooses to change independent
the first step of any scientific investigation question
step by step directions for conducting an experiment procedure
when a solid gains heat and turns into a liquid melting
;what something is known as if it has both volume and mass (examples: water, iron, plastic, cotton) matter
when a liquid gains lots of heat and rapidly turns into a gas boiling
the absence of heat cold
when liquid loses heat and its atoms come together to form a solid freezing
the smallest unit of matter that cannot be divided by chemical means atom
a property that describes how easily a substance undergoes chemical changes reactivity
the matter of only one type of atom (examples: sodium, potassium, chlorine, oxygen, carbon, etc.) element
properties such as color, density, and hardness are known as the _______________ properties of matter physical
properties that describe how matter reacts when exposed to other substances or energy are known as the ________________ properties of matter chemical
matter that is made of two or more types of atoms combined chemically (examplesL H2O [water], CO2 [carbon dioxide]) compound
a kind of chart invented by Dmitri Mendeleev in 1869 is known as the ________________ table periodic
A Greek thinker who expressed ideas about the building blocks of matter. Aristotle
Created by: wmork
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