A combination of molecules mixed through another substance that will not settle out or join with the other substance – mayonnaise, milk and marshmallows, for instance.
What is a Colloid?
100
Climatically and geographically contiguous areas with similar climatic conditions. These include deserts, forests, grasslands, tundra, and various aquatic environments.
What are biomes?
100
Spinning clockwise – the opposite of earth – Venus is said to have this kind of rotation.
What is Retrograde Rotation?
100
For every action there is an equal and opposite reaction. It’s the law demonstrated when a cannonball flies forward, but the cannon that fired it jumps backward.
What is Newton’s Third Law?
100
The amount of substance (in moles) of solute, divided by the mass (in kg) of the solvent.
What is Molality?
200
The number of protons plus the number of neutrons in the nucleus of an atom.
What is Atomic Mass Number?
200
A community of living (biotic) organisms together with nonliving (abiotic) components of their environment interacting as a system.
What is an Ecosystem?
200
Period of rotation or period of revolution, it’s the one that determines the length of a planet’s day. Mercury’s, for example, takes 175.97 Earth days.
What is Period of Revolution?
200
This law states that every object in motion tends to remain in motion unless an unbalanced external force acts upon it.
What is Newton’s First Law?
200
A homogeneous mixture in which a solute is dissolved in a solvent.
What is a Solution?
300
Bonds in compounds that result from the sharing of one or more pairs of electrons.
What are Covalent Bonds?
300
Non-living parts of the environment that affect living organisms and the functioning of ecosystems; air, water and soil, for instance.
What are Abiotic Factors?
300
This is where old oceanic crust is pushed beneath the continental crust back into the Earth’s interior. Volcanism and earthquakes are common there.
What are Subduction Zones?
300
This force pulls all matter together. Planets, moons and stars that have a lot of matter, so they have more of this pull.
What is gravity?
300
They're not plants, animals or fungi, but they act enough like them that scientists believe they paved the way for the evolution of early plants and animals. Their name means "first creatures."
What are protists?
400
Generally solids that conduct electrical current, these chemical compounds are held together in a structure by electrostatic forces.
What are Ionic Compounds?
400
Rabbits, deer, cows, horses, and other herbivores that feed on green plants or parts of plants.
What are Primary Consumers?
400
Ganymede and Europa are two of the 63 known moons of this giant planet with a strange, red spot.
What is Jupiter?
400
The protons and neutrons in an atom's nucleus are made up of these subatomic particles.
What are quarks?
400
Any compound that produces hydronium (H3O+) ions when it is dissolved in water is called this.
What is an Acid?
500
This fun to say part of chemistry studies amounts of substances that are involved in reactions.
What is Stoichiometry?
500
Vascular seed producing plants in which the ovule (egg) is fertilized and develops into a seed in an enclosed hollow ovary which is usually enclosed within in a flower. Most flowering plants are these?
What are Angiosperms?
500
Unlike their rocky, terrestrial neighbors, the outer planets are mostly made up these gasses.
What are hydrogen and helium?
500
This SI unit of force is equal to the force that would give a mass of one kilogram an acceleration of one meter per second squared.
What is a Newton?
500
There are two basic types of organisms based on cell type, Prokaryotic and Eukaryotic. All bacteria are this type.