Forensic Science Unit 1 Test

Which of the following is NOT a general lab safety rule?

• No horseplay

• No food or drink in the lab

• Keep work areas clean

• Wearing sandals in the lab

What is the first step of the scientific method?

• Analyze data

• Form a hypothesis

• State a problem/question

• Draw a conclusion

An inference is:

• A direct observation

• A guess with no evidence

• An explanation based on observations

• A proven fact

Which statement best describes a hypothesis?

• A proven fact

• An if…then… testable statement

• A guess without evidence

• A confirmed theory

In an experiment, the variable that is deliberately changed is called:

• Dependent variable

• Independent variable

• Control variable

• Constant

Which variable is measured in an experiment?

• Independent

• Dependent

• Controlled

• Random

Which is an example of quantitative data?

• The liquid is green

• The metal feels hot

• The plant is 15 cm tall

• The powder smells sweet

Which of the following best compares the forensic method to the traditional method?

• Forensic method studies the present; traditional studies the past

• In forensic method it is ethical not to make the conclusions public.

• Traditional method uses more evidence

• Forensic method doesn't need hypotheses

What is Locard's Exchange Principle?

• Every hypothesis must be tested

• Every contact leaves a trace

• Safety comes first in labs

• DNA is unique to each person

Which scientist is considered the "Father of Toxicology"?

• Alphonse Bertillon

• Mathieu Orfila

• Edmond Locard

• Francis Galton