CHEMISTRY
The atomic number represents this subatomic particle in an atom
What is the protons?
This is the term for a push or pull on an object.
What is a force?
This is the layer of Earth’s atmosphere where weather occurs.
What is the troposphere?
The original source of energy for most ecosystems
What is the Sun?
This is the name of the theory that explains the origin of the universe approximately 13.8 billion years ago.
What is the Big Bang Theory?
This group of elements is known for being non-reactive and includes helium and neon.
What are the noble gases?
This is the equation for Newton’s Second Law of Motion
What is F=ma
(force equals mass times acceleration)?
This greenhouse gas is released by burning fossil fuels and is a major contributor to global warming.
What is carbon dioxide (CO₂)?
Only about this percentage of energy is passed from one trophic level to the next in a food chain.
What is 10%?
The process by which organisms better adapted to their environment survive and reproduce is called this.
What is natural selection?
The substances you start with in a chemical reaction are called this.
What are reactants?
The shortest straight-line path between an object's initial and final positions, including direction.
What is displacement?
This term describes the reflectivity of a surface, such as ice or snow.
What is albedo?
This term refers to the buildup of toxins, such as pesticides, as they move up the food chain.
What is biomagnification?
This term refers to the complete disappearance of a species from Earth.
What is extinction?
This is the name of the scale used to measure the acidity or basicity of a substance.
What is the pH scale?
The slope of a position-time graph represents this quantity.
What is velocity?
This international treaty was signed in 1987 to phase out substances that deplete the ozone layer, such as CFCs.
What is the Montreal Protocol?
This type of limiting factor depends on the size of the population, such as competition or disease.
What is a density-dependent factor?
The process of creating genetically modified organisms (GMOs) is an advanced form of this.
What is artificial selection?
The name of the compound with the formula Fe₂O₃
What is iron (III) oxide?
A car slows from 20 m/s to 10 m/s in 5 seconds. This is its acceleration.
What is −2 m/s2?
These are consistent winds that blow in the same direction over large areas of Earth and influence weather patterns.
What are prevailing winds?
This term describes the excessive growth of algae in aquatic ecosystems due to nutrient pollution, often caused by nitrogen or phosphorus.
What is eutrophication?
This term refers to the current geological age, characterized by significant human impact on Earth's ecosystems and geology.
What is the Anthropocene?