MCAS MCAS Science and Technology/Engineering 3

Question 1

What is the term for the transfer of heat through direct contact between objects?

Accepted Answer

Conduction

Answer

Convection

Answer

Radiation

Answer

Insulation

Question 2

Which layer of Earth's atmosphere contains the ozone layer?

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Mesosphere

Answer

Thermosphere

Question 3

What is the role of decomposers in an ecosystem?

Accepted Answer

They break down dead organic matter and recycle nutrients

Answer

They produce their own food using sunlight

Answer

They hunt and eat other organisms

Answer

They convert nitrogen gas into usable forms

Question 4

What type of circuit allows electricity to flow through multiple paths?

Accepted Answer

Parallel circuit

Answer

Series circuit

Answer

Open circuit

Answer

Short circuit

Question 5

Which process describes water changing from liquid to gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Precipitation

Answer

Sublimation

Question 6

What does DNA stand for?

Accepted Answer

Deoxyribonucleic Acid

Answer

Dioxyribose Nucleic Acid

Answer

Deoxyribose Nitrogen Acid

Answer

Double Nucleic Acid