Ecosystems
An organism that can make its own food.
What is a producer?
Puffy clouds that appear to rise up from a flat bottom, indicative of sunny weather.
What are cumulus clouds?
force that acts on an object to stop its motion.
What is friction?
A change where no new matter forms. Most changes can be undone. Example: cutting paper, freezing water, melting ice.
What is a physical change?
a characteristic that a living thing gets during its lifetime. Example: a scar.
What is an acquired trait?
An organism that feeds on other organisms because it cannot make its own food.
What is a consumer?
Precipitation that flows across the land's surface or falls into rivers and streams.
What is runoff?
A natural force that pulls things toward the Earth's surface.
What is gravity?
Material through which heat can move easily. Example: aluminum and stainless steel.
What is a conductor?
A single-celled organism that eats by surrounding a food particle and then bringing the food into the cell. It can move by changing its shape.
What is an amoeba?
Non-living factors in an ecosystem- sun, light, air, rocks, man-made structures.
What are abiotic factors?
An unusual warming of the surface water in the eastern Pacific Ocean near the equator.
What is El Nino?
Every object will remain at rest or in constant motion unless acted on by an externa force.
What is inertia (1st law of motion)?
Heat transferred through electromagnetic waves.
What is radiation?
A cell that has no nucleus.
What is prokaryotic?
Cold biome of the far north. Large treeless plain in the artic regions. Here the ground is frozen all year with little rainfall.
What is a Tundra?
Middle latitudes; wind pattern that blows wind from the west across the United States.
What are westerlies?
A change in velocity with respect to time.
What is acceleration?
anything that has mass and takes up space.
What is matter?
A single-celled organism that uses its hair-like structures to help it move and take in food.
What is a paramecium?
A cool forest biome of conifers in the upper Northern Hemisphere. Climate is cool to cold, evergreen coniferous forests; ponds and lakes.
What is a Taiga?
Warm current in the Atlantic Ocean that helps keep weather mild along the east coast.
What is the Gulf stream?
The product of the mass and velocity of an object (mass x velocity).
What is momentum?
An instrument that measures mass.
What is a pan balance?
a single-celled organism with a whip-like tail that moves it forward. it uses sunlight to make food.
What is a euglena?