AEPA Science 3

Question 1

Which organelle is known as the 'powerhouse of the cell' because it produces ATP through cellular respiration?

Accepted Answer

Mitochondria

Answer

Mitochondria carry out cellular respiration, converting glucose and oxygen into ATP, the cell's primary energy currency.

Question 2

A teacher integrates engineering design challenges into a science unit. Which framework does this best align with?

Accepted Answer

STEM integration through NGSS

Answer

NGSS explicitly integrates engineering design practices with science content, connecting science and technology learning.

Question 3

Which of the following is an example of a chemical change?

Accepted Answer

Iron rusting

Answer

Rusting (oxidation) produces a new substance (iron oxide) with different properties, making it a chemical change.

Question 4

What is the role of decomposers in an ecosystem?

Accepted Answer

To break down dead organic matter and return nutrients to the soil

Answer

Decomposers (fungi and bacteria) break down dead organisms, recycling nutrients back into the ecosystem.

Question 5

Which type of wave requires a medium to travel through?

Accepted Answer

Mechanical waves

Answer

Mechanical waves (such as sound and water waves) need a material medium to propagate, unlike electromagnetic waves.

AEPA - Arizona Educator Proficiency Assessments Practice Test