Physics
This is the change in position of an object over time.
motion
The basic unit of life.
cell
The smallest unit of an element that keeps its chemical properties.
atom
Earth’s natural satellite.
Moon
Molten rock beneath Earth’s surface.
magma
This force pulls objects toward the center of Earth.
gravity
The molecule that carries genetic information in living things.
DNA
The table that organizes all known chemical elements.
periodic table
The largest planet in our solar system.
Jupiter
The instrument used to measure earthquakes.
seismograph
The energy stored in an object because of its position or shape.
potential energy
This organ pumps blood throughout the body.
heart
A substance with a pH less than 7.
acid
The process by which stars produce energy by combining atomic nuclei.
nuclear fusion
The layer of gases surrounding Earth.
atmosphere
This type of electromagnetic wave is visible to the human eye
visible light
The process by which organisms adapt and change over generations.
evolution
The reaction in which oxygen combines with another substance, often producing heat.
combustion
he galaxy that contains our solar system.
Milky Way
The largest ocean on Earth.
Pacific Ocean
This famous scientist developed the theory of relativity.
Albert Einstein
A community of organisms interacting with their environment.
ecosystem
The center of an atom that contains protons and neutrons.
nucleus
A region in space where gravity is so strong that not even light can escape.
black hole
Long-term patterns of temperature and weather in a region.
climate