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mass per unit volume of a substance
Measures the size of an object using length measurements in three dimensions
changes as a result of the changes in the Independent Variable.
two or more atoms joined together chemically, with covalent or ionic bonds
substance consisting of only one type of atom
an apparatus used for recording and measuring spectra, especially as a method of analysis.
a rule that describes a pattern in nature
a scientific law stating that during a chemical reaction, matter is not created nor destroyed.
a standard to compare with the results in an experiment.
a mixture of two or more substances that is the same throughout
a property that can be measured without changing the chemical composition of a substance
A simple statement predicting the result of a controlled scientific experiment.
Substances initially present in a chemical reaction
part of an experiment that the experimenter changes.
International System of Units
An eclipse that changes appearance as the moon's shadow moves across the earth's face.
composed of two or more substances, but each keeps its original properties
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
A mixture of a substance that is not uniform throughout.
the steps scientists use to create explanations based on the evidence they gather
An eclipse of the sun in which the edge of the sun remains visible as a bright ring around the moon.
A mixture of a substance that is evenly spread throughout. Particles not distinguishable
A standard set up in which to the experimental results are compared
A statement that sums up what you learned from an experiment and states if the hypothesis is proven or disproven.
the science of matter and energy.
an eclipse in which the sun is obscured by the moon.