Biological Diversity
This term describes the variety of species in an ecosystem.
What is biodiversity?
This state of matter has a fixed shape and volume.
What is a solid?
This scale measures how acidic or basic a substance is.
What is the pH scale?
This word describes the complete path electricity flows through.
What is a circuit?
This optical instrument allows scientists to observe distant stars and planets.
What is a telescope?
This type of reproduction results in offspring that are exact genetic copies of the parent.
What is asexual reproduction?
This type of change alters the appearance of matter but not its composition.
What is a physical change?
This agricultural product can enter water systems and cause excessive plant growth.
What is fertilizer?
This unit is used to measure electric current.
What is an ampere (or amp)?
This type of space technology allows GPS systems and weather forecasting on Earth.
What is a satellite?
This type of reproduction creates variation by combining genetic material from two parents.
What is sexual reproduction?
This scientific law states that matter is neither created nor destroyed in a reaction.
What is the Law of Conservation of Mass?
This term describes the increasing concentration of toxins as they move up the food chain.
What is biomagnification?
This formula relates voltage, current, and resistance.
What is V = I × R (Ohm’s Law)?
This unit measures the distance light travels in one year.
What is a light-year?
This process explains how traits that help survival become more common over time.
What is natural selection?
This term describes a pure substance made of two or more non-metal elements chemically bonded.
What is a molecular compound?
This is the term for the amount of a substance required to kill half of a population.
What is LD50?
This is the resistance in ohms when the current is 3A and voltage is 6V.
What is 2 ohms?
This term describes the path one object takes as it moves around another in space.
What is an orbit?
This human activity reduces biodiversity by removing animal habitats for farming or development.
What is deforestation?
This is the balanced form of the equation:
H₂ + O₂ → H₂O.
What is 2H₂ + O₂ → 2H₂O?
This is the reason why a water sample has a pH 4 and dissolved oxygen of 3 ppm.
What is it is because it is polluted?
This is the total energy used by an 800W device running for 2.5 hours.
What is 7 200 000 J or 2000 Wh or 2.0 kWh?
This is the correct order: Sputnik launch, moon landing, ISS launch.
What is Sputnik → Moon landing → ISS?