How Much Do You Know About the Planet Earth?


By: Isadora Teich

5 Min Quiz

Image: Paper Boat Creative/Digital Vision/Getty Images

About This Quiz

From the hottest deserts to the deepest oceans to the most massive metropolises, Earth is a vast and complex place. From the crust plates, the massive plates the continents drift on, to the highest points of the sky, there is so much to learn about and discover. And there is a lot that we have not even discovered yet. Scientists have estimated that there are 8.7 million species on earth. That includes the roughly 1.2 million species of animals that are currently known. In the dark jungles, deep oceans and vast remote spaces of the world, undiscovered animals and plants lurk.   

Throughout its long history, numerous plant and animal species have lived, died and evolved on earth. Beneath the major cities of current civilizations, the bones of past civilizations and species can be found deep in the ground. From mummies to ancient buildings and streets, to the bones of dinosaurs, there is always so much more to discover. Even in the very formation of the earth itself, there are some mysteries left to uncover. 

If you are a science buff with a great love for our planet and all of its quirks, intricacies, and mysteries, see how well you know the Earth with this quiz! 

Which number planet is Earth from the sun?

Earth is the third planet from the sun. The order of the planets in our solar system is: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.


What is happening to the Earth's rotation?

The Earth's rotation is slowing. However, it is happening very slowly, at the rate of 17 milliseconds per century.


How many moons does the earth have?

Some planets have many moons. The earth only has one.


Earth's atmosphere is mostly:

Earth's atmosphere is is 78% nitrogen and 21% oxygen. It contains trace amounts of other gases.


The earth is mostly covered by:

The earth's surface is 70% covered by water. This includes the world's oceans, lakes and rivers.


Where did the first of earth's life develop?

The first of the world's life developed in the oceans. These were simple single-celled creatures that evolved to form all of the life on earth.


What is the earth's interior made of?

Scientists think the world has an inner core, a solid mantle and an outer crust that varies in thickness. Its crust is divided into tectonic plates which are in constant motion.


What kind of planet is earth?

In our solar system there are rocky terrestrial planets, massive gas giants and frigid ice giants. Earth is a rocky terrestrial planet.


During which eon of earth was there no life on it?

Scientists divide earth's history into 4 eons. The first is the Hadean, during which the Earth and Moon were formed. The earth was scorching hot and inhospitable to life.


What was Pangaea?

Pangaea was an ancient supercontinent that split into the continents Laurentia, Baltica, Siberia and Gondwana. Over time, these became the continents as we know them today.


Which sort of animal appeared first?

Life started in the oceans with simple organisms. During the Cambrian Explosion, the first vertebrate organisms evolved from them, including the first fish.


How many mass extinctions have there been on earth?

There have been 5 mass extinctions throughout earth's history. In all of them, over half of all life on earth was wiped out each time.


All humans are the ancestors of a small _________ ape.

Humans are a relatively new addition to the planet Earth. The roughly 3.9 – 2.55 million-year-old Australopithecus Afarensis, whose remains were found in Africa, is the oldest evidence of hominids found so far.


What is the scientific name of modern humans?

Homo sapiens is the scientific name of modern man. Between 35,000 and 100,000 years ago homo sapiens migrated from Africa to Australia and Eurasia.


Where on earth did humans develop agriculture for the first time?

Humans developed agriculture for the first time in the Fertile Crescent, in the Middle East. This occurred between 8500 and 7000 BC and was the start of modern civilization.


Where do volcanoes form?

Volcanoes form in areas where tectonic plates either collide or drift apart. This movement creates pressure which causes explosions of magma from the earth's surface in the form of volcanoes.


Which of these is one of the 6 main groups of animals on earth?

6 main kinds of animals live on earth. These are mammals, invertebrates, fish , birds, amphibians and reptiles.


All living things on earth store genetic information in DNA and ________.

All living things on earth store genetic information in DNA and RNA. This provides evidence for the shared ancestry of all living things on earth.


When it's winter in Toronto, what season is it in Wellington?

The seasons are opposite in the Northern in Southern Hemisphere. When it is winter in the Northern Hemisphere, it is summer in the Southern Hemisphere.


Are all deserts hot?

While subtropical deserts are the hottest and most well-known, there are actually 4 types of deserts. The types of deserts are polar, coastal, cold winter and subtropical.


Which of these is one of the major climate regions?

On Earth there are 6 major climate regions. These are Mediterranean, Temperate, Polar, Arid, Tropical and Tundra.


Polar climates are _________ all year long.

Polar climates are cold and dry all year long and few animals and plants live there. Polar climates are found around the North and South poles.


Much of the climate of North America is:

Much of North America is temperate, though a few types of climates are represented there. This climate type has cold winters and mild summers and supports diverse plant and animal life.


Tropical regions have a wet and a _________ season.

Tropical regions have an incredible diversity of plant and animal life. They include the jungles of South America and Africa, Southeast Asia and the Pacific islands.


Where is the world's highest mountain?

At over 29,000 feet high, Mount Everest is the world's tallest mountain. It sits on the border of China and Nepal.


The world's hottest inhabited place is located in:

Dallol, Ethiopia is said to be one of the hottest, if not the hottest inhabited place in the world. This remote desert location is only accessible by camels and known for its beautiful landscape and scorching average temperature of 106 degrees Fahrenheit.


Where is the deepest cave on earth?

The Veryovkina Cave is located in the country of Georgia in the Western Caucasus Mountains. At over 7,200 feet deep, it is the deepest known cave on earth.


The earth formed about _________ years ago.

The earth is roughly 4.5 billion years old. Scientists have determined this via a process called radiometric dating.


Where is the coldest permanently inhabited place on earth?

The coldest permanently inhabited place is Oymyakon, a rural eastern Russian village. In January, the average temperate is -58 degrees Fahrenheit.


Where was the hottest ground temperature on earth ever recorded?

A ground temperature of over 200 degrees Fahrenheit was recorded in Death Valley, California in 1972. So far, this is the hottest ground temperature ever recorded on earth.


How many oceans are there on earth?

The earth's oceans are split into five sections. These are the Atlantic Ocean, Pacific Ocean, Indian Ocean, Arctic Ocean and Antarctic (Southern) Ocean.


Which is the deepest ocean trench on earth?

The Mariana Trench is located in the Pacific Ocean. At nearly 36,000 feet deep, it is the deepest natural point on earth.


Is there land at the North Pole?

Despite all the legends about Santa Claus living at the North Pole, there is no land there. The geographic North Pole is located in the Arctic Ocean.


Is there land at the South Pole?

The geographic South Pole is located on the continent of Antarctica. It is the fifth-largest continent.


The highest human settlement is in:

The highest permanent human settlement on earth is the town of La Rinconada, Peru in the Peruvian Andes. It sits at an elevation of 16,732 feet.


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