This organ pumps blood throughout the body.
What is the heart
This is the state of matter that has a definite shape and volume
What is a solid
This planet is known as the "Red Planet."
What is Mars
This term describes all living and nonliving things in a particular area
What is an ecosystem
This is the energy of an object due to its motion
What is kinetic energy
This is the largest organ in the human body
What is skin
This is the term for a change in matter from a solid to a liquid
What is melting
This large gas giant is famous for its rings.
What is Saturn
This is the process by which plants make their own food using sunlight, carbon dioxide, and water
What is photosynthesis
This type of energy is stored in an object due to its position or condition, like a stretched spring
What is potential energy
These cells help fight infections
This process occurs when a liquid turns into a gas
What is evaporation
This is the closest planet to the Sun
What is Mercury
These organisms break down dead plants and animals, returning nutrients to the soil
What are decomposers
This is the force that opposes the motion of objects sliding past each other.
What is friction
This organ is responsible for breaking down food and absorbing nutrients
What is the small intestine
This term describes the amount of space an object takes up
What is volume
This dwarf planet is located in the Kuiper Belt and was once considered the ninth planet
What is Pluto
This is the term for a community of living organisms interacting with their environment in a specific area
What is a habitat
This law states that an object will remain at rest or in uniform motion unless acted upon by an external force
What is Newton's First Law of Motion (the law of inertia)
This part of the brain controls thinking, memory, and voluntary movement
What is the cerebrum
This is the term for the ability of a substance to dissolve in a liquid
What is solubility
This planet is known as the "Earth's twin" because of its similar size and composition
What is Venus
This type of biome is characterized by extremely low temperatures and ice-covered land.
What is a tundra
This type of energy is transferred between objects and can take the form of heat, light, or sound.
What is thermal energy