Matter
Waves
Geology
Biology
Astronomy
100

Anything that has mass and takes up space.

Matter

100

The highest point of a transverse wave.

Crest

100

The process that breaks down rock and other substances at Earth’s surface.

Weathering

100

An organism that obtains energy by feeding on other organisms.

Consumer

100

The study of the moons, stars, and other objects in space.

Astronomy

200

The smallest unit of matter with physical properties.

Atoms

200

The number of waves that pass a fixed point in a given unit of time.

Frequency

200

The four layers of Earth from the inside out.

Inner Core, Outer Core, Mantle, Crust

200

Plant growth (bending or turning) in response to a stimulus.

Tropism

200

The imaginary line that passes through Earth’s center and the North and South poles.

Axis

300

The amount of mass in a given unit of space.

Density

300

A type of transverse wave that can travel through vacuums.

Electromagnetic Wave

300

The four parts of soil.

Water, Air, Minerals, and Organic matter

300

Any restricting abiotic or biotic factor that limits the existence, number, or reproduction of a species.

Limiting Factor

300

The larger part of a shadow.

Penumbra

400

The three subatomic particles that make up atoms.

Protons, Electrons, and Neutrons.

400

The deadly type of electromagnetic wave with the shortest wavelength.

Gamma Ray

400

The three classifications of rock.

Igneous, Sedimentary, and Metamorphic

400

The process by which water evaporates from a plant’s leaves.

Transpiration

400

A celestial event that occurs when a new moon blocks your view of the sun.

Solar Eclipse

500

The ability of a substance to be dissolved.

Solubility

500

The transparent front surface of the eye.

Cornea

500

The layer of the Earth responsible for generating a magnetic field and what it is made of.

The Outer Core is made of liquid Iron and Nickel.

500

The small openings on the undersides of most leaves through which O₂, CO₂, and H₂O can move.

Stomata

500

A tide with the greatest difference between consecutive low and high tides.

Spring Tide

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