AEPA Science 1

Question 1

Which of the following best describes a controlled experiment in science education?

Accepted Answer

An experiment where only one variable is changed while all others are kept constant

Answer

A controlled experiment isolates one independent variable to determine its effect on the dependent variable.

Question 2

According to the Next Generation Science Standards (NGSS), which of the following is a crosscutting concept?

Accepted Answer

Cause and Effect

Answer

Cause and Effect is one of NGSS's seven crosscutting concepts that link scientific disciplines.

Question 3

Which process do plants use to convert light energy into chemical energy stored in glucose?

Accepted Answer

Photosynthesis

Answer

Photosynthesis uses sunlight, water, and carbon dioxide to produce glucose and oxygen in plant chloroplasts.

Question 4

A teacher asks students to predict what will happen before conducting an experiment. Which science practice does this develop?

Accepted Answer

Constructing explanations

Answer

Making predictions before experiments is part of constructing explanations, linking prior knowledge to expected outcomes.

Question 5

Which layer of Earth's structure is composed primarily of liquid iron and nickel?

Accepted Answer

Outer core

Answer

The outer core is a liquid layer of iron and nickel, and its movement generates Earth's magnetic field.

AEPA - Arizona Educator Proficiency Assessments Practice Test