DOPHHAE
What does the A in DOPHHAE stand for and mean
Acid rain is rain with acidic components.
The variety and variability of life forms within a given ecosystem, including different species, genetic variations, and ecosystems themselves.
What is it
Biodiversity
Define Energy
Ability to do work
Whats the purpose of the Steel Wool lab?
To observe the reaction between steel wool vinegar and oxygen in the air. Also to understand the chemical equation used
What is Odor change
When certain fruits like an apple go from a nice smell to a bad smell when they rot.
What does the O stand for and define
Overexploitation occurs when humans extract more of a natural resource than can be replaced naturally
The total amount of greenhouse gases (mainly carbon dioxide) emitted into the atmosphere as a result of human activities, typically measured in tons of CO2 t per year.
Carbon footprint
Define potential energy
The stored energy in an object due to its position, properties, and forces acting on it.
What are the materials in the Mirror lab
Flat mirror, drawing of a simple shape, pencil, ruler, and index cards.
What is precipitate
Explain the E in Dophhae (Eutrophication)
The process in which nutrients accumulate in a body of water, resulting in an increased growth of organisms that may deplete the oxygen in the water.
The release of pollutants or gases, especially greenhouse gases like carbon dioxide, into the atmosphere
Emissions
Define kinetic energy
Energy an object has due to its motion
What were the directions or method of the Sound Waves lab?
Put your head on the desk with one ear on it and cover the other. Tap an object on the desk to observe how the sound travel through the desk. Rate the loudness and repeat with other objects.
What is gas production
When the fruit is rotting, ethylene which is a gas produced by all fruits and vegetables is the reason all fruits rot.
What do both of the H's in DOPHHAE stand and mean
Habitat destruction:Habitat destruction occurs when natural habitats are lost or degraded, making them unable to support the species that live there. It's the main threat to wildlife survival.
Habitat fragmentation:
Habitat fragmentation happens when a large area of habitat is divided into smaller, isolated pieces. This can occur due to natural events like volcanic eruptions or fires, but is more often caused by human activities like construction or farming.
Long-term alterations in temperature, precipitation, and other atmospheric patterns on Earth, primarily caused by human activities
Climate change
Potential vs Kinetic Energy whats the difference
Potential energy is "stored" energy that an object possesses due to its position or arrangement, while kinetic energy is the energy of an object in motion, meaning it is the energy an object has because it is moving; essentially, potential energy is the "possibility" to do work, while kinetic energy is the actual work being done by an object in motion.
Summarize the Heat flow lab
Students compared the amount of time it took for an ice cube to melt in a person's non-dominant hand. Conduction happens when the heat flow travels from the person's hand to the ice cube, melting it.
Choose one of these factors and explain what they do to rate of reaction.
Concentration
Temperature
Surface Area
Catalysts
Indicators
Concentration-If it goes up then more reactants get exposed in the reaction
Temperature- More temp makes higher reaction/ rate of particle collisions
Surface Area- more surface area means more collision
Catalysts-H2O2 acts as a catayst in rate of reaction
Indicators- materials that change when the color when something is present
Name what DOPHHAE stands for (each letter)
D ecrease in Natural Resources
O verexploitation
P ollution
H abitat destruction
H abitat fragmentation
A cid rain
E utrophication
A deceptive marketing practice where a company or organization falsely claims or exaggerates its environmental efforts or sustainability practices to appear more eco-friendly than it actually is.
Greenwashing
Sound vs Light Waves what's the difference
Light waves are electromagnetic waves which can travel through a vacuum, while sound waves are mechanical waves that require a medium like air, water, or solid to travel through, and thus travel significantly slower than light waves. Light waves are transverse waves while sound waves are longitudinal waves.
What was the chemical equation we used in the steel wool lab
4 Fe + 3O2 -> 2Fe2O3
Whats the difference between Inhibitors and Indicators?
Inhibitors are substances that slow down the rate of a chemical reaction by preventing or hindering the activity of a catalyst. Indicators are substances that change color when they are added to acidic or alkaline solutions.