1. Atlantic
   Arctic
2. Indian
   Pacific

The Pacific Ocean is the largest followed by the Atlantic, Indian, Southern, and Arctic.

1. Sodium
   Strontium
2. Tin
   Selenium

Tin, which has atomic number 50 gets its abbreviations for the Latin translation, stannum.

1. Protons
   Neutrons
2. Electrions
   Anions

Protons carry a positive charge while electrons carry a negative charge and neutrons have no net charge.

1. Germination
   Photosynthesis
2. Phosphorylation
   Transcription

This process is known as photosynthesis where the plant uses energy from the sun to create food.

1. Venus
   Uranus
2. Mercury
   Mars

In the popular mnemonic for the planets in order from closest to furthest away from the Sun, the first M stands for Mercury.

1. 9
   8
2. 7
   10

Although most of us grew up with Pluto being one of the planets, in 2006 it was 'demoted' to a dwarf-planet.

1. Oxygen
   Helium
2. Hydrogen
   Carbon

Hydrogen is the first element on the periodic table with the abbreviation "H."

1. Einstein
   Darwin
2. Pasteur
   Mendel

Charles Darwin, who is heavily recognized for his work on evolution, was known for the idea of natural selection - the idea that animals that could adapt to their environment had better chances at survival.

1. Plants
   Insects
2. Clouds
   Rocks

Clouds are broken up by levels. The highest includes cirrus and the lowest level clouds are stratus, cumulus, and stratocumulus.

1. Amps
   Volts
2. Ohms
   Watts

Watts are used to measure power while amps, volts, and ohms measure current, voltage, and resistance, respectively.

1. 1
   7
2. 14
   10

The pH level of water is around 7, which gives it a neutral level rather than being very acidic (pH ~1) or very basic/alkaline (pH ~14).

1. Sahara
   Antarctica
2. The Arctic Desert
   Arabian Desert

The largest deserts are the polar deserts, Antarctica being the largest and the Arctic Desert coming in second. The Sahara desert is the largest non-polar desert.

1. Carbon
   Helium
2. Potassium
   Oxygen

Oxygen, which has an atomic number of 8, is the 8th element on the periodic table.

1. Neutron & Electron
   Neutron & Proton
2. Electron & Proton
   Electron & Neutron

Nucleons help make up the atomic nucleus and the two known kinds are protons and neutrons.

1. Biology
   Zoology
2. Botany
   Ecology

Botany is the study of plant life while biology is the study of life and living organisms, zoology is the study of animal life, and ecology is the study of organisms and their relationship with their environment.

1. Mercury
   Venus
2. Mars
   Jupiter

Although Mercury is the closest planet to the Sun, Venus is actually the hottest planet, maintaining a temperature of 462 degrees Celsius.

1. Saturn
   Jupiter
2. Uranus
   Neptune

Jupiter is the largest planet in the Solar System followed by Saturn, Uranus, Neptune, and then Earth.

1. Nitrogen
   Oxygen
2. Hydrogen
   Helium

Although most are made to believe it's oxygen, science class taught us that 78% of the air we breathe is made of up nitrogen gas while only 20% is oxygen.

1. Carnivores
   Herbivores
2. Omnivores
   Multivores

With the prefix 'omni-' meaning all, omnivores are animals that eat 'all' things referring to both plants and animals.

1. 100 degrees Fahrenheit
   100 degrees Celsius
2. 0 degrees Celsius
   300 degrees Fahrenheit

Water boils at 100 degrees Celsius which is 212 degrees Fahrenheit.

1. The liver
   The brain
2. The skin
   The lungs

The largest organ of the body is the skin followed by the liver, brain, lungs, and heart.

1. Snakes
   Spiders
2. Squirrels
   Animals

Arachnophobia is the fear of spiders which comes from the Greek word, arachne, which means spider.

1. Geologist
   Paleontologist
2. Pedologist
   Meteorologist

Not to be confused with paleontologists, geologists study the Earth and the rocks that made it while paleontologists study the history of life through fossils.

1. 100
   200
2. 118
   160

There are 118 elements on the periodic table - the first being Hydrogen (H) and the last Ununoctium (Uuo).

1. Ptolemy
   Pasteur
2. Galileo
   Ehrlich

Claudius Ptolemy argued the theory that the Earth was at the center of the universe, but his theory was eventually proven false.

1. Newton
   Curie
2. Copernicus
   Faraday

Nicolaus Copernicus refuted Ptolemy's ideas and stated that the universe was heliocentric and revolved around the Sun. He also was the first to state that the Earth spun on its axis once a day and completely revolved around the Sun annually.

1. 1
   2
2. 3
   4

While Mercury and Venus have no moons and Jupiter and Saturn have 60+, Earth only has one moon, which is ironically named, "Moon."

1. Au
   Ag
2. Fe
   Fi

On the periodic table, the symbol for gold is Au which is derived from the Latin world for gold which is 'aurum.'

1. 12
   23
2. 46
   1

Although you might be tempted to choose 23, humans have 23 PAIRS of chromosomes meaning in total we have 46.

1. 32 degrees Fahrenheit
   0 degrees Fahrenheit
2. 32 degrees Celsius
   None of the above

Water freezes at 32 degrees Fahrenheit which is equivalent to 0 degrees Celsius.

1. 270
   150
2. 300
   206

Although babies are born with 270 bones, this number decreases as some of the bones fuse together as the child ages ending with 206 bones.

1. Fish
   Mammals
2. Amphibians
   Reptiles

While some might believe that sharks are mammals like dolphins, sharks breathe through gills while dolphins use their lungs.

1. Keratin
   Melanin
2. Elastin
   Collagen

Melanin is what gives the hair and skin it's pigment. The more melanin you have, the deeper the skin tone or shade.

1. Galileo
   Einstein
2. Edison
   Newton

In 1905, Einstein proposed the theory of relativity for all non-accelerating objects.

1. Tarsals
   Carpals
2. Phalanx
   Phalanges

The bones in the hands are commonly referred to as the carpals. The phalanxes are the fingers while phalanges and tarsals are found in the foot.