Semester 1 Exam Review Huggins

Front

What is metamorphic rock and how does it form?

Back

Metamorphic rock is a type of rock that has been changed from its original form due to heat, pressure, or chemically active fluids. It can form from igneous rock or sedimentary rock.

Front

What is the average daily temperature in September according to the graph?

Back

The average daily temperature in September is around 82 degrees.

Front

How do you calculate the difference in temperature between two times?

Back

To calculate the difference in temperature, subtract the lower temperature from the higher temperature. For example, if the temperature at 8 am is 20° and at 1 pm is 23°, the difference is 3°.

Front

What is an independent variable in an experiment?

Back

An independent variable is a variable that is purposely changed or manipulated in an experiment to test its effects on the dependent variable.

Front

How does scientific knowledge change over time?

Back

Scientific knowledge changes as new evidence is discovered, leading to revisions of previous theories and understandings.

Front

What is the definition of igneous rock?

Back

Igneous rock is formed from the solidification of molten rock material (magma or lava).

Front

What is the role of a controlled variable in an experiment?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that the results are due to the independent variable.

Front

What is the difference between a dependent variable and an independent variable?

Back

The independent variable is the one that is changed by the experimenter, while the dependent variable is the one that is measured or observed in response to changes in the independent variable.

Front

What is the significance of Ptolemy's and Copernicus's theories in astronomy?

Back

Ptolemy's theory suggested that Earth was the center of the universe, while Copernicus's theory proposed that the sun is at the center, marking a significant shift in astronomical understanding.

Front

What is a hypothesis in scientific research?

Back

A hypothesis is a testable statement or prediction about the relationship between two or more variables.