Study Notes on Carbon Cycle and Ocean Acidification

Introduction to Carbon Cycle

• Focus on the movement of carbon through natural systems.

• Importance of understanding human disruption to the carbon cycle and its impact on ocean acidification.

Photosynthesis

• Key substance for photosynthesis: Carbon dioxide (CO₂).

• Benefits of photosynthesis: Reduces CO₂ in the atmosphere.

Carbon Cycle Mechanisms

• Human activities (burning fossil fuels, deforestation) increase atmospheric CO₂.

• Photosynthesis and ocean absorption function as carbon sinks.

• Decomposition of dead organisms leads to fossil fuel formation over millions of years.

Photosynthesis Process

• Stomata allow CO₂ entry, and water is absorbed for photosynthesis.

• Products: Glucose used as energy for plants.

Carbon Dioxide (CO₂)

• Chemical structure: 1 carbon atom bonded to 2 oxygen atoms (CO₂).

• CO₂ in water forms carbonic acid (H₂CO₃), affecting ocean pH.

Ocean Acidification

• Increased CO₂ absorption by oceans lowers pH, creating carbonic acid.

• Consequences for marine life: Impairs species' ability to build shells, affects reproduction.

Subatomic Particles in Atoms

• Nucleus contains protons (positive charge) and neutrons (neutral charge).

• Electrons (negative charge) reside in shells around the nucleus.

Learning and Assessment

• Learning intentions: Understand carbon cycling and its disruption.

• Success criteria: Describe carbon movement and ocean acidification effects.

• Assessment through questions regarding photosynthesis, subatomic particles, and ocean acidification impacts.