DCAS Science Standards

Question 1

In Delaware Comprehensive Assessment System, what is the purpose of the scientific method in science standards?

Accepted Answer

To provide a systematic approach for investigating questions and testing hypotheses

Answer

To guarantee specific experimental outcomes

Answer

To eliminate the need for observation

Answer

To replace professional judgment entirely

Question 2

What is a controlled variable in an experiment related to Delaware Comprehensive Assessment System?

Accepted Answer

A factor that is kept constant throughout the experiment

Answer

The variable that is intentionally changed

Answer

The outcome that is measured

Answer

A variable that changes randomly

Question 3

Which level of biological organization represents the most complex in Delaware Comprehensive Assessment System science standards?

Accepted Answer

Ecosystem

Answer

Cell

Answer

Tissue

Answer

Organ

Question 4

In Delaware Comprehensive Assessment System, what is homeostasis?

Accepted Answer

The body's ability to maintain a stable internal environment despite external changes

Answer

A rapid increase in body temperature

Answer

The process of cell division

Answer

A type of immune response

Question 5

What is the primary function of the mitochondria in cells relevant to Delaware Comprehensive Assessment System?

Accepted Answer

To produce energy (ATP) through cellular respiration

Answer

To store genetic information

Answer

To synthesize proteins

Answer

To remove waste products

Question 6

In Delaware Comprehensive Assessment System, what does pH measure?

Accepted Answer

The acidity or alkalinity of a solution on a scale of 0 to 14

Answer

The temperature of a liquid

Answer

The pressure within a container

Answer

The viscosity of a solution