The Circle of Life
This is used to identify organisms based on their characteristics.
What is a key.
This is the term for a large body that orbits a star.
What is a planet.
This is the process by which liquid water turns into water vapor due to heat.
What is evaporation.
This number identifies an element and is equal to the number of protons in its atom.
What is the atomic number.
These are positively charged particles found in the nucleus of an atom.
What are protons.
This term describes the sequence of who eats who in an ecosystem, starting with a producer.
What is a food chain.
This term refers to a ball of burning gases that produces light and heat, such as our Sun.
What is a star.
Water vapor cools and changes into tiny droplets, forming clouds in this process.
What is condensation.
This is the name for the diagram that shows electrons arranged in shells or orbits.
What is the Bohr Diagram.
These subatomic particles have no charge and are located in the nucleus.
What are neutrons.
This interconnected network shows how energy flows through multiple food chains in an ecosystem.
What is a food web.
These small, icy objects develop bright tails as they approach the gravitational pull of planets.
What are comets.
This is the stage of the water cycle where water falls to the ground as rain, snow, sleet, or hail.
What is precipitation.
The periodic table organizes elements by increasing atomic number and groups them into these horizontal columns.
What are periods.
These negatively charged particles orbit the nucleus of an atom in energy levels.
What are electrons.
This is a natural, non-living factor in an environment, such as temperature, sunlight, or water.
What is an abiotic factor.
This force keeps planets in orbit around the Sun and holds galaxies together.
What is gravity.
The process by which plants release water vapor into the atmosphere through their leaves is called this.
What is transpiration.
Atoms are most stable when they achieve this number of electrons in their valence shell.
What is 8.
This is the total number of protons and neutrons in the nucleus of an atom.
What is the mass number.
Organisms of the same or different species do this when resources like food, water, or territory are limited.
What is compete.
This is the term for a region of space where gravity is so strong that nothing, not even light, can escape.
What is a black hole.
This layer of gases surrounds Earth and makes life possible by trapping heat from the Sun and essential elements like oxygen, carbon, and hydrogen.
What is the atmosphere.
When atoms gain or lose electrons they from ionic ______, when they share electrons their _______ are covalent.
What are bonds.
Atoms of the same element that have different numbers of neutrons are called this.
What are isotopes.