Chemistry
Evolution
Random
Hydrology
Ecosystems
100

The creator of the periodic table

Who is Dmitri Mendeleev?

100

The three types of rocks.

What are igneous, metamorphic, and sedimentary?

100

Resources that are replaced as quickly as we use them.

What are renewable resources?

100

The changing of a gas to a liquid.

What is condensation?

100

The place where a plant or animal lives.

What is habitat?

200

The three subdivisions of elements on the periodic table

What are metals, nonmetals, and metalloids?

200

Igneous rock that forms above the ground (i.e. lava that cools and hardens)

What is an extrusion?

200

Plant or animal material such as wood, manure, grass, or hay. 

What is biomass?

200

The area of land where water is drained downhill into a body of water.

What is a watershed?

200

The nonliving components of an ecosystem.

What are abiotic factors?

300

Examples include mass, weight, solubility, melting point, boiling point, etc.

What are physical properties?

300

The method in which the age of an object is estimated as an actual number of years.

What is absolute dating?

300

Contains chloroplasts and a cell wall. 

What is plant cell?

300

Pollution that cannot be traced back to one source.

What is non-point source pollution?

300

An interaction in which both organisms receive a benefit?

What is mutualism? 

400

Chemical symbols of Iron, Gold, and Mercury. 

What are Fe, Au, and Hg?

400

Structures that have the same function, but do not share a common origin.

What are analogous structures?

400

Younger rock layers form on top of older rock layers.

What is the principle of superposition?

400

The changing of water directly from a solid to a gas.

What is sublimation?

400

The amount of energy that is available to the next trophic level.

What is 10%?

500

Group 1 and Group 17 on the periodic table.

What are Alkali metals and Halogens?
500

The four main intervals (eras) of the geologic time scale.

What is Precambrian, Paleozoic, Mesozoic, and Cenozoic Eras?

500

Fluids which contain insoluble solid particles that eventually settle.

What is a suspension?

500

The open ocean

What is the pelagic zone?

500

DKPCOFGS.

What is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species?