Unit 1: Intro, Matter & Change Part 1

Front

What is the branch of chemistry that involves finding out how much nitrogen is in a sample of air?

Back

Analytical chemistry is the branch of chemistry that deals with the analysis of substances to determine their composition and quantity.

Front

What do you call the information collected during an experiment?

Back

Data is the information collected during an experiment, which can be analyzed to draw conclusions.

Front

What is an explanation based on many repeated observations during experiments called?

Back

A theory is an explanation that is based on a body of evidence and repeated observations.

Front

Which of the following is NOT considered matter?

Back

None of the choices listed (Mars, Smoke, Steam) are NOT matter; all are forms of matter.

Front

What is the study of the composition, structure, and properties of matter and the changes it undergoes?

Back

Chemistry is the study of matter, its properties, and the changes it undergoes.

Front

What is a hypothesis?

Back

A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

Front

What is the difference between a scientific law and a theory?

Back

A scientific law describes a consistent relationship observed in nature, while a theory explains why that relationship exists.

Front

What is matter?

Back

Matter is anything that has mass and occupies space.

Front

What is the purpose of conducting experiments in science?

Back

The purpose of conducting experiments is to test hypotheses and gather data to support or refute them.

Front

What is the scientific method?

Back

The scientific method is a systematic approach to inquiry that involves making observations, forming hypotheses, conducting experiments, and drawing conclusions.