Ecology
What is a consumer
What cannot make their food, so they obtain food/energy from their biotic environment
a stationary electric charge that is built up on material.
Friction- occurs when two objects rub together and electrons from one object are
transferred to the other object– creating two charged objects.
What is an element
What is a substances that is made up of only one type of atom.
What is promenince?
large & brightly curved stream of particles extending outwards
Matter
What has a mass and takes up space
What is a trophic level
Whast is the position of an organism in the food chain
Where do electric charges come from?
Protons and neutrons (in the nucleus) are unable to move, but electrons are in constant motion around the nucleus. Protons and neutrons are locked in the nucleus- only electrons can be gained or lost from materials
What is a heterogeneous mixture
Heterogeneous: Varied throughout (different parts visible)
what is a meteroid?
Created by asteroid collisions or shed by comets. They range in size
from dust particles to asteroids.
What is a molecular compound?
consists of two or more non-metals (sharing electrons)
What is photosynthesis
What is the process plants use to make energy (glucose)
What is an insulator
-do not allow objects to move easily
-hold on tight to their electrons
What is a molecule
What is the smallest independent unit of a pure substance made up of 2 or more atoms bonded together
What is a meteorite
meteor that did not burn up completely and strike’s Earth’s surface
What is a covalent bond?
the sharing of pairs of electrons
What is cellular respiration
process by which all living things (plants & animals) break down sugar and turn it into energy.
What is an electrostatic series
a list of materials (in order of their electron affinity) that helps determine which material will become positively charged and negatively charged when rubbed together.
What is a subatomic particle
What are three smaller particles that make up the atom: protons, neutrons & electrons
What is a lunar eclipse?
occurs when Earth lies directly between the Moon and the Sun. Earth blocks out the Sun’s light shining on the Moon, making the Moon briefly “disappear.”
What is a polyatomic ion?
an ion that contains more than one atom
What is non point pollution
What enters bodies of water indirectly when water
from rain or snow travels over land and picks up pollutants from many
different sources before entering a stream or a lake.
What is a currrent?
Current (I) → the flow of electrons (charge) that passes by a point in one second (measured in units called ampere (A))
What is a cation
What is a Positive ion
What is a heliocentric model?
Sun was fixed, and the planets revolved around the Sun.
What are the 3 components of the biosphere?
the regions of Earth where life exists—are the lithosphere, the atmosphere, and the hydrosphere