Biology - Ecosystems and Life on Earth
What term refers to the variety of life forms in a specific habitat or ecosystem?
What Is Biodiversity?
What is the smallest unit of matter that retains the properties of an element?
What Is An Atom
What is an element made of?
What Is An element is made up of atoms, all of which have the same number of protons
In the periodic table, what is the term for elements with similar chemical properties arranged in vertical columns?
What Is A Group (or Family)
What is a physical change in matter?
What Is A physical change is a change in the appearance or form of matter, but not in its chemical composition (e.g., melting, freezing)
Which level of the food chain is responsible for converting sunlight into energy?
What Is Producers?
What is the center of an atom, containing protons and neutrons?
What Is A Nucleus
What is a compound?
A compound is a substance made from two or more different elements bonded together.
What do the horizontal rows of the periodic table represent?
What Are Periods (each row represents elements with the same number of electron shells)
What is the difference between a physical and a chemical property?
What Is A physical property can be observed without changing the substance's chemical identity (e.g., color, density). A chemical property refers to a substance's ability to undergo a chemical change (e.g., flammability, reactivity).
Name one way ecosystems support life on Earth.
What Are "Ecosystems provide oxygen, food, water, shelter, and support the carbon and nitrogen cycles"
What subatomic particle is negatively charged and orbits the nucleus?
What Is An Electron
How do atoms bond to form molecules?
What Are "Atoms bond by sharing or transferring electrons to achieve a stable electron configuration."
What is the atomic number of the element oxygen?
What Is 8
What is a chemical change in matter?
What Is A chemical change is when a substance transforms into a new substance with different properties (e.g., rusting, burning).
What is the primary role of decomposers in an ecosystem?
What Is "Decomposers break down dead organic matter, returning nutrients to the soil. "
How do the number of protons in an atom determine its element?
What Is "The number of protons (atomic number) defines the element. Each element has a unique number of protons."
What is the difference between ionic and covalent bonds?
What Is "What is the difference between ionic and covalent bonds?"
Name the two main types of elements found in the periodic table.
What Are Metals and Nonmetals
How can you determine if a chemical reaction has occurred?
What Are Indicators include a change in color, temperature, formation of a gas, or the production of a precipitate.
How does energy flow through an ecosystem, starting from the sun?
What Is Sun → Producers (plants) → Primary consumers (herbivores) → Secondary consumers (carnivores) → Tertiary consumers → Decomposers.
What is the atomic number of an element, and how is it determined?
What Is The atomic number is the number of protons in the nucleus of an atom. It uniquely identifies the element.
What is a molecule made up of two or more elements in a fixed ratio called?
What Is A compound
What are transition metals, and where are they located on the periodic table?
What Is Transition metals are elements in groups 3-12 and are located in the middle of the periodic table.
What is the law of conservation of mass, and how does it apply to chemical reactions?
What Is The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of reactants equals the total mass of products.