Ecosystems
All the living and nonliving things that interact with each other and their environment in one place.
What is an ecosystem?
Anything that takes up space and has weight; can be in different forms, such as solid, liquid, or gas
What is matter?
all the water (solid, liquid, and gas) on and around planet Earth
A pretend version of something that scientists use when the real thing is too big, small, or complicated to work with
What is a model?
a series of steps used to solve problems, create new products, and improve existing ones
What is the engineering design process?
an animal that eats both plants and animals
What is an omnivore?
a combination of two or more things
includes all living things on Earth, such plants, animals, and bacteria
What is the biosphere?
to circle another object, like the Earth around the Sun
What is revolve (or orbit)?
the amount of money you have to spend on something
What is budget?
an animal that hunts and eats other animals
What is a predator?
What are states of matter?
the solid part of Earth, including all rocks, soil, and landforms, from the surface down to the inner core
What is the geosphere?
A set of events that repeats in the same order over and over again
What is a cycle?
something that limits what you can do
What is a constraint?
What is a food chain?
A process where one or more substances form a new substance
What is a chemical reaction?
the process of liquid changing to a gas
evaporation
an invisible force that pulls any object down toward the center of a planet, moon, or other object
What is gravity?
specific requirements a project must meet to be successful
What are criteria?
the movement of material through an ecosystem, such as through food chains and food webs.
something you can observe about an object or material
What is a property?
the process of gas changing to a liquid
condensation
the air that surrounds a planet
What is atmosphere?
An early, rough model of a new idea or product, built to test if it works before making it to the final version
What is a prototype?