PLTW PBS 1.1.1-1.1.4

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What are the primary fingerprint patterns?

Back

The primary fingerprint patterns are loops, whorls, and arches.

Front

What does it mean if blood clumps with anti-B serum but not with anti-A serum?

Back

It indicates that the blood type is B.

Front

True or False: No two people have been found with the exact same fingerprint pattern.

Back

True.

Front

What is the core of a hair called?

Back

The core of a hair is called the medulla.

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

Define 'stain removal' in the context of a detergent experiment.

Back

Stain removal refers to the effectiveness of a detergent in eliminating stains from fabrics.

Front

What is the significance of fingerprint patterns in forensic science?

Back

Fingerprint patterns are unique to individuals and are used for identification in forensic investigations.

Front

What are the three main types of fingerprints?

Back

The three main types of fingerprints are loops, whorls, and arches.

Front

What is the role of the cuticle in hair structure?

Back

The cuticle is the outermost layer of the hair that protects the inner layers.