Scientific Method and Variables

Coach K introduces science, explaining its categories: life, earth, and physical sciences. The scientific method is detailed, covering problem identification, hypothesis, experimentation, and conclusion. Variables, constants, and controls in experiments are discussed, along with modeling types. The distinction between laws and theories is clarified. The video concludes with the interconnectedness of science, math, engineering, and technology.

Which category of science deals with living organisms?

• Mathematics

• Earth and Space Science

• Life Science

• Physical Science

What is the first step in the scientific method?

• Conducting an experiment

• Forming a hypothesis

• Analyzing data

• Stating the problem

What is a hypothesis in the scientific method?

• An educated guess

• A random guess

• A detailed experiment

• A proven fact

In an experiment, what is the variable that is changed called?

• Dependent variable

• Control variable

• Independent variable

• Constant variable

What is the purpose of a control in an experiment?

• To increase the complexity of the experiment

• To ensure the hypothesis is correct

• To provide a baseline for comparison

• To change multiple variables

Which of the following is an example of a mathematical model?

• A computer simulation

• A physical model of a bridge

• E=mc²

• A diagram of a cell

What distinguishes a scientific law from a theory?

• A theory is based on fewer experiments

• A theory cannot be replaced

• A law explains why something happens

• A law describes an observation without explaining why

Which of the following areas is closely tied with science?

• Literature

• Art

• Engineering

• History

What happens if a theory is contradicted by new experimental data?

• The theory is modified or replaced

• The theory is immediately discarded

• The theory becomes a law

• The data is ignored

What is the relationship between science and technology?

• Technology is a subset of science

• Science is a subset of technology

• They are completely independent

• They enhance each other