Biology
This is the basic unit of life.
Cell
This is the star at the center of our solar system.
Sun
This is the unit used to measure force.
Newton
This is the most abundant element in the Earth's atmosphere.
Nitrogen
This is the layer of gases surrounding the Earth.
Atmosphere
This process uses sunlight, water, and carbon dioxide to produce glucose (sugar) and oxygen in plants.
Photosynthesis
This is the natural satellite that orbits the Earth.
Moon
This is the transfer of thermal energy through direct contact.
Conduction
A substance made up of two or more different elements chemically joined together.
Compound
This is the wearing away of rocks and soil by natural agents like wind and water.
Erosion
These thread-like structures found in the nucleus of a cell are made of DNA and contain genetic information.
Chromosomes
This is the name for a large collection of stars, gas, and dust held together by gravity, like our Milky Way.
Galaxy
This property of an object resists changes in its state of motion.
Inertia
This is the change of a liquid into a gas.
Evaporation
These are the three main types of rocks: igneous, sedimentary, and __________.
Metamorphic
This term describes the maintenance of a stable internal environment within an organism, despite changes in the external environment.
Homeostasis
This is the phenomenon that occurs when the Moon passes directly between the Sun and Earth, casting a shadow on Earth.
Solar Eclipse
This type of electromagnetic radiation has the longest wavelength in the visible spectrum.
Red Light
These are atoms of the same element that have different numbers of neutrons.
Isotopes
This process describes the continuous movement of water on, above, and below the surface of the Earth.
Water Cycle
This organelle is responsible for generating most of the cell's energy in the form of ATP through cellular respiration.
Mitochondria
This is the theory that describes the origin and evolution of the universe, starting from an extremely hot and dense state.
Big Bang Theory
This principle states that the total momentum of a closed system remains constant if no external forces act on it.
Law of Conservation of Momentum
This type of chemical bond involves the sharing of electron pairs between atoms.
Covalent Bond
This scale is used to measure the intensity of an earthquake.
Richter Scale