The planet Earth.
- Age: Scientists estimate the Earth to be around 4.6 billion years old.
- Day: A day is how long it takes the Earth to make one revolution. It takes the Earth 23 hours, 56 minutes and 4 seconds to make this journey.
- Year: A year is how long it takes the Earth to go around the sun once. This takes 365 days, 5 hours, 41 minutes and 48 seconds. The extra time is why we add a day to the calendar every four years. This is called leap year.
- Circumference: The circumference of the earth at the equator is approximately 29,401.55 miles. However, since the Earth bulges in the center, measuring the Earth’s circumference around the north and south poles gives a slightly smaller circumference of 24,859.82 miles.
- Depth: From the surface to the center, the depth of the Earth measures 3,963 miles.
- Elements: The Earth is made up of iron, oxygen, silicon, magnesium, sulfur, calcium, aluminum and other trace elements.
- Water to Land Ratio: The Earth is mostly made up of water. Seventy percent of the world is ocean; only thirty percent is land.
- Natural Satellites: Unlike other planets, Earth has only one natural satellite, the moon.
- Hottest Day: The hottest day in recorded history occurred in El Azizia, Libia, at 136 degrees Fahrenheit. Coming in a close second at a 134 degrees was a temperature recorded in Death Valley, California.
- Coldest Day: Vostok in Antarctica boasts the coldest day in recorded history at −129 degrees Fahrenheit.
- Wettest Location: Lloro, Columbia receives more than forty inches of rain a year.
- Driest Location: Arica located in Chile receives less than an inch of rain a year.
- Highest Point: Measuring from the center of the earth to the furthest point, Mount Chimborazo in Ecuador which is at a 20,564 foot elevation since it is along the equatorial bulge. The highest point above sea level is Mount Everest in Nepal which is 29,029 foot above sea level.
- Lowest Point: The Dead Sea shore in Israel-Jordan rests −1,385 feet below sea level.
- Largest Island: Greenland is the largest island on Earth.
- An example of Earth is the third planet from the sun.
- An example of Earth is the dirt or mud in your garden.
Earth is defined as the planet that you live on, or dirt and mud.
Facts About Earth
- [oftenE-] the planet that we live on; terrestrial globe: it is the fifth largest planet of the solar system and the third in distance from the sun: diameter, c. 12,760 km (c. 7,930 mi); period of revolution, one earth year; period of rotation, 24 hours; one satellite; symbol, ?: often with the
- this world, as distinguished from heaven and hell
- all the people on earth
- land, as distinguished from sea or sky; the ground
- the soft, granular or crumbly part of land; soil; ground
- Old Poet.
- the substance of the human body
- the human body
- the concerns, interests, etc. of human life; worldly matters
- the hole of a burrowing animal; lair
- Obs. a land or country
- Chem. any of the metallic oxides, formerly classed as elements, which are reduced with difficulty to an alkaline-earth metal, rare-earth element, or certain other metals
- Elec., Brit. ground
Origin of earthMiddle English erthe from Old English eorthe, akin to German erde from Indo-European base an unverified form er- from source Classical Greek era, earth, Welsh erw, field
- to cover (up) with soil for protection, as seeds or plants
- to chase (an animal) into a hole or burrow
come back to earth
down to earth
- practical; realistic
- sincere; without affectation
go to earth
run to earth
Origin of earth< use in fox hunting
- to hunt down
- to find by search
- a. The land surface of the world.b. The softer, friable part of land; soil, especially productive soil.
- often Earth The third planet from the sun, having a sidereal period of revolution about the sun of 365.26 days at a mean distance of approximately 149.6 million kilometers (92.96 million miles), a sidereal rotation period of 23 hours 56.07 minutes, an average radius of 6,378.1 kilometers (3,963 miles), and a mass of approximately 5.9736 × 1024 kilograms (1.3169 × 1025 pounds).
- The realm of mortal existence; the temporal world.
- The human inhabitants of the world: The earth received the news with joy.
- a. Worldly affairs and pursuits.b. Everyday life; reality: was brought back to earth from his daydreams of wealth and fame.
- The substance of the human body; clay.
- The lair of a burrowing animal.
- Chiefly British The ground of an electrical circuit.
- Chemistry Any of several metallic oxides, such as alumina or zirconia, that are difficult to reduce and were formerly regarded as elements.
verbearthed, earth·ing, earths
- To cover or heap (plants) with soil for protection.
- To chase (an animal) into an underground hiding place.
Origin of earthMiddle English erthe from Old English eorthe ; see er-2 in Indo-European roots.
cutaway of the earth
- The word earth is capitalized to Earth when used in context with other celestial bodies.
(countable and uncountable, plural earths)
- (uncountable) Soil.
- This is good earth for growing potatoes.
- (uncountable) Any general rock-based material.
- She sighed when the plane's wheels finally touched earth.
- The ground, land (as opposed to the sky or sea).
- Birds are of the sky, not of the earth.
- (UK) A connection electrically to the earth ((US) ground); on equipment: a terminal connected in that manner.
- A fox's home or lair.
- The world of our current life (as opposed to heaven or an afterlife).
- (alchemy) One of the four basic elements.
- (India and Japan) One of the five basic elements.
- (Taoism) One of the five basic elements.
(third-person singular simple present earths, present participle earthing, simple past and past participle earthed)
From Middle English erthe, from Old English eorþe (“earth, ground, soil, dry land”), from Proto-Germanic *erþō (“earth, ground, soil”) (compare West Frisian ierde, Low German Er(de)/Ir(de), Dutch aarde, German Erde, Danish jord), related to *erwōn 'earth' (compare Old High German ero, perhaps Old Norse jǫrfi 'gravel'), from Proto-Indo-European *h₁er- (compare Ancient Greek *ἔρα (*era) in ἔραζε (eraze, “on the ground”), perhaps Tocharian B yare 'gravel'; probably unrelated though of unknown etymology: Old Armenian երկիր (erkir, “earth”)). The phonologically similar Proto-Semitic *ʾarṣ́- and its reflexes (Arabic أَرْضٌ (ʾarḍ), Hebrew אֶרֶץ (ʾereṣ)) are probably not related.
From Old English eorþe.