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About This Quiz
The thighbone is connected to the what bone? Can you tell the difference between a cell and an organelle? What's your take on continental drift theory? You'll get plenty of chances to address these and other sciencey stuff with this science quiz. Biology, astronomy, geometry, chemistry and physics are all covered in this super fun survey of how the natural world works.
Basic brain anatomy deals with three main areas. Are the names of these zones stored somewhere inside your cranial dome? If not, don't worry. You'll secure those facts and more in just a few scrolls. But before you give this exam your best shot, enjoy a few pointers for review. Certain creatures covered here are single-celled organisms, dinosaurs, insects and humans. Yes...humans are creatures too, according to science. And as far as chemistry is concerned, arm yourself with an intermediate understanding of the elements, their natural purposes and behaviors in relation to other elements or compounds. Physics facts make an appearance on this test. Nail the basics on speed, constants and intervals and you'll go a long way.
Now go strong and score big!
How hot is the sun?
5,800 kelvins
The sun's surface measures approximately 5,800 kelvins. The sun is a star and the dominate force of the solar system around which the Earth and other planets orbit.
3,600 kelvins
1,200 kelvins
98 kelvins
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What substance is called the "universal solvent"?
Mercury
Benzene
Water
Water is often known as the universal solvent because of its ability to dissolve many substances. Water is the main constituent of most living organisms.
Petroleum
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What is the first element of the periodic table?
Helium
Magnesium
Hydrogen
Hydrogen is the first element of the periodic table and is placed in group 1, but it is not considered an alkali metal. Of all the elements, hydrogen is the most abundant chemical element.
Neon
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What is the boiling point of water?
212 degrees fahrenheit
The boiling point of a liquid substance is the temperature at which the pressure applied by the surroundings upon the liquid is matched by the pressure of the liquid vapor. When this pressure equalization occurs, liquid transforms to gas without a temperature increase.
32 degrees Fahrenheit
0 degrees Fahrenheit
100 degrees Fahrenheit
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Which structure of the brain is not contained in the cerebrum?
Olfactory bulb
Cerebellum
The three main parts of the brain are the cerebrum, cerebellum and the brain stem. The cerebrum is the largest part of the brain that contains the hippocampus, basal ganglia and olfactory bulb. The cerebellum is based just below and behind the cerebral hemispheres.
Hippocampus
Basal ganglia
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What part of a microscope holds a specimen in place?
Arm
Stage clips
Scientists use microscopes to examine small specimens that are difficult to analyze without the aid of an enlarged image, which microscopes provide. Two common types are the electron microscope and the light microscope.
Illuminator
Nosepiece
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What is the rigid outer section of Planet Earth called?
Lithosphere
The term "lithosphere" is derived from the Greek word "lithos" meaning "rock." The lithosphere is the solid outer layer of the Earth which includes the Earth's crust.
Atmosphere
Heliosphere
Rhizosphere
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What type of charge does a valence electron carry?
Positive
Neutral
Negative
Valence electrons are negatively charged particles that dwell in the outermost region of atoms. They are essential in the creation of chemical bonds.
Ionic
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Which cell structure is responsible for generating large amounts of energy?
Cilia
Ribosomes
Mitochondrion
A mitochondrion is a specialized cell structure found in the cytoplasm of practically all cells with delineated nuclei. The energy that mitochondrion generate come in the form of adenosine triphosphate (ATP) molecules, which capture energy from food and distribute it as fuel for other cellular activities.
Golgi apparatus
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Which part of the human body safeguards the trachea from food inhalation?
Nose
Esophagus
Larynx
The larynx is located in the neck of mammals, amphibians and reptiles. This vital structure protects from breathing in food particles. It's also used for creating sounds and breathing.
Pharynx
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Who invented the electron microscope?
Ruska and Knoll
Electron microscopes are powerful magnifying devices that achieve high resolution using an electron beam as opposed to a light ray. Many research laboratories use light microscopes to support electron microscopy.
Marie Curie
Ernst Mayr
Louis Pasteur
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What is the name of the theory that posits that all the continents were connected at one point?
Quantum theory
Continental drift
Continental drift recognizes complementary shapes of continents that appear as if they could fit together like pieces of a jigsaw puzzle. The concept of earth plate shifting, or tectonics, incorporates this theory.
Relativity
Evolution
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The carpal canal is located in which human structure?
Heart
Wrist
The system of eight bones in the wrist is referred to as the carpal bones or the carpus. The wrist joint is also called the radiocarpal joint.
Stomach
Lung
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How many miles is the planet Mars from Earth?
5 million km
225 million km
The distance between Earth and Mars varies depending on the position of these two planets which orbit the sun. Mars is the fourth planet from the sun, and Earth is the third planet from the sun. On average, Mars is 225 million km from Earth.
967 million km
12 million km
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Which of these elements is not an alkaline earth metal?
Magnesium
Calcium
Hydrogen
Hydrogen is a flammable, gaseous substance. It has a single positively charged proton in its nucleus and one negatively charged electron. Hydrogen is the lightest chemical element of the periodic table.
Barium
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What is the name of the instrument used to measure the altitude of the land surface?
Thermometer
Hydrometer
Altimeter
Aside from measuring the altitude of the land surface, altimeters can determine the elevation of any object in relation to ground level or sea level. Radio altimeters measure the distance above water or land by recording the time it takes for sound waves to travel from an elevated object to the Earth and back. Pressure altimeters measure atmospheric pressure above sea level to determine altitude.
Ammeter
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What is the freezing point of water?
0 degrees Fahrenheit
100 degrees Fahrenheit
32 degrees Fahrenheit
The freezing point is the temperature at which a liquid becomes a solid through increased pressure. The composition of the solid changes from that of its liquid state in a way that tends to lower the substance's freezing point.
212 degrees Fahrenheit
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What is the name of the colored eye structure that's a ring-shaped membrane behind the cornea?
Macula
Choroid
Retina
Iris
For most mammals, the iris controls the size and diameter of the pupil which also regulates the amount of light that reaches the retina. A person's eye color is determined by the iris color.
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What is the structure of the heart that pumps blood out of the heart into the circulatory system?
Ventricle
A heart ventricle is a muscular chamber that pumps blood out of the heart and into the circulatory system of an organism. Humans have two ventricles called the left ventricle and the right ventricle, which are the two lower chambers of the heart. The right ventricle supplies blood to the lungs, and the left ventricle pumps blood to the aorta, which then supplies blood to the body's tissues.
Left atrium
Right atrium
Esophagus
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What is the biological process in which a single cell divides into two individual cells?
Photosynthesis
Cytokinesis
Cytokinesis occurs when single-cell organisms reproduce to form two organisms and with embryos during development. Plant and animal matter also undergo cytokinesis during growth and repair processes.
Tropism
Metamorphosis
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What is the name of the instrument used to measure atmospheric pressure?
Electroscope
Galvanometer
Barometer
Barometers also measure altitude since atmospheric pressure changes depending on the distance below or above sea level. Aneroid and mercury are the two main types of barometers.
Cyclotron
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What is a group of stars that form a recognizable pattern called?
Arc
Constellation
Constellation patterns assist astronomers in locating certain stars or other celestial objects. Asterisms are the smaller groups of stars that comprise the larger constellation.
Configuration
Ephemeris
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The symbol "K" represents what element on the periodic table?
Calcium
Kryptonite
Potassium
Potassium has an atomic number of 19 and is of the alkali metal group from the periodic table. Potassium chloride, potassium carbonate and potassium chlorate are common potassium salt compounds.
Phosphorus
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Halogen elements comprise which group of the periodic table?
Group 5
Group 7
Group 17
Halogens are six nonmetallic elements of Group 17 from the periodic table. The halogen elements are fluorine, chlorine, bromine, iodine, astatine and tennessine.
Group 13
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What is the name of the plant structure that bears buds and young branches with leaves?
Flower
Roots
Leaf
Stem
The plant stem is primarily a structure of support that conducts and stores food for the plant. Some plants have underground stems which help the plant to survive adverse growing conditions.
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What is the name of the organelle that digests macromolecules?
Centrosome
Vesicle
Nucleolus
Lysosome
A lysosome is an organelle, or specialized cell structure, found in most eukaryotic cells. In addition to macromolecules, lysosomes digest microorganisms and damaged cell parts.
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The rate at which velocity changes over time defines which of the following?
Accretion
Acceleration
Acceleration describes bodies in motion that speed up and slow down. Both acceleration and velocity are vector quantities. Acceleration's quantity is expressed as the change in velocity divided by a time interval.
Momentum
Oscillation
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Can you identify the continent where most dinosaur fossils have been found?
Asia
North America
North America is the third largest of the world's continents and it's where most of the dinosaur fossils have been found. Only solid and durable skeletons from past geological periods were preserved in the Earth's crust.
Antarctica
Europe
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Which is not a function of insect antennae?
Reproduce
Antennae are sensory appendages that insects, crustaceans and certain arthropods use to taste, hear and smell. These animals feel along surfaces and filter air currents with these highly sensitive structures.
Taste
Hear
Smell
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What is a basic cell of the nervous system called?
Neuron
Neurons are the basic cells of the nervous system. A nerve cell has one nucleus and carries impulses along fibers called dendrites.
Photon
Platelet
Electron
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What is the atomic number for beryllium?
45
10
4
Beryllium is a member of the alkaline-earth metal group from the periodic table. This rare element is used in the production of nuclear and aerospace constituents.
5
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Where is the pituitary gland located?
Liver
Heart
Brain
The pituitary gland is a gland of the endocrine system located on the underside of the brain. This "master gland" discharges hormones directly into the bloodstream.
Small intestine
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What is the thighbone called?
Ethmoid
Femur
The femur bone is also called the upper bone and it forms joints at the knee and the hip. Gluteus medius and maximus muscles are attached to the upper thigh.
Palatine
Patella
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What is the chemical compound found in the outer skeleton of insects, lobsters and crabs called?
Chitin
Chitin is a polysaccharide that contains glucosamine, which is a monosaccharide and amino sugar. Chitin is abundant in the exoskeletons of animals and is useful for protecting soft tissues.
Melanin
Flouride
Collagen
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During which geological time period did dinosaurs go extinct?
Cretaceous
Many lines of dinosaurs began to die off during the Cretaceous period. The Cretaceous, Jurassic and Triassic periods are part of the Mesozoic era.
Quaternary
Triassic
Cambrian
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