Scientific Method/ Basic Life/Chemistry

What is the purpose of the Scientific Method?

To systematically investigate observations, solve problems, and test hypotheses.

List the steps of the Scientific Method.

Observation, Question, Hypothesis, Experiment, Data Collection, Conclusion, Communication of Results.

What is an Independent Variable?

The factor being manipulated in an experiment.

What is a Dependent Variable?

The factor being measured in an experiment.

What is a Control Group?

The group without experimental treatment, used as a baseline.

What is the definition of Hypothesis?

A testable statement.

What does Theory refer to in scientific terms?

A well-supported explanation.

What is Sample Size in an experiment?

The number of subjects in an experiment.

What is a Trial in the context of scientific experiments?

Repetitions of an experiment.

What is Homeostasis?

Maintenance of stable internal conditions.

Define Negative Feedback.

Opposes change; e.g., temperature regulation.

Define Positive Feedback.

Enhances change; e.g., blood clotting.

What are the basic properties of life?

Order, metabolism, homeostasis, growth, adaptation, response, reproduction.

What is an Atom?

The basic unit of a chemical element composed of protons, neutrons, and electrons.

What is an Isotope?

Same element with different numbers of neutrons.

What defines a Compound?

Chemically bonded elements.

Define Hydrophilic.

Water-attracting.

Define Hydrophobic.

Water-repelling.

What does the pH Scale indicate?

Acidity or basicity of a solution.

What is a Solvent?

The dissolving medium in a solution.

What is a Monomer?

A single unit that can combine with others to form a polymer.

What are Carbohydrates?

Organic compounds, including monosaccharides, disaccharides, and polysaccharides.

What are Proteins made of?

Chains of amino acids that can form enzymes and antibodies.

What are Nucleic Acids?

Biomolecules like DNA and RNA that store genetic information.