7th Grade Science Midterm 2024

Front

What is experimentation?

Back

A scientific investigation that involves identifying and controlling variables to test a hypothesis.

Front

What happens to light when it moves from a vacuum to air?

Back

Light slows down when it moves from a vacuum to air due to the change in medium.

Front

What are qualitative observations?

Back

Observations that deal with descriptions that cannot be expressed in numbers.

Front

What is a Scientific Law?

Back

A statement that describes what scientists expect to happen every time under a particular set of conditions.

Front

What energy conversions occur when energy is transformed into unusable heat energy?

Back

Chemical to electrical to radiant and thermal energy conversions.

Front

What is the difference between quantitative and qualitative observations?

Back

Quantitative observations involve numbers and measurements, while qualitative observations involve descriptions that cannot be quantified.

Front

What is the purpose of controlling variables in an experiment?

Back

To ensure that the results are due to the independent variable and not other factors.

Front

What is a hypothesis?

Back

A testable prediction about the relationship between two or more variables.

Front

What is the scientific method?

Back

A systematic process used by scientists to investigate phenomena, acquire new knowledge, or correct and integrate previous knowledge.

Front

What is the role of a control group in an experiment?

Back

To provide a standard for comparison against the experimental group.