MCAS MCAS Science and Technology/Engineering 1

Question 1

What is the process by which plants make their own food using sunlight?

Accepted Answer

Photosynthesis

Answer

Photosynthesis is the process plants use to convert sunlight, water, and carbon dioxide into glucose and oxygen.

Question 2

Which of Newton's laws states that an object at rest stays at rest unless acted upon by an external force?

Accepted Answer

Newton's First Law

Answer

Newton's First Law (inertia) states that objects remain in their current state of motion unless a net external force acts on them.

Question 3

What type of rock forms from cooled magma or lava?

Accepted Answer

Igneous

Answer

Igneous rocks form when molten magma or lava cools and solidifies.

Question 4

What is the basic unit of life?

Accepted Answer

Cell

Answer

The cell is the basic structural and functional unit of all living organisms.

Question 5

Which gas do humans exhale in greater amounts than they inhale?

Accepted Answer

Carbon dioxide

Answer

Humans produce carbon dioxide as a byproduct of cellular respiration and exhale it in greater concentrations than they inhale.

MCAS - Massachusetts Comprehensive Assessment System Test Practice Test