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Sum, combine, count up.

The rate of change of velocity over time.

Astronomers are scientists who study the origin of the universe and its objects and how it works. As an astronomer, you can work in observational astronomy, using telescopes and cameras to look at the stars, galaxies and other astronomical objects, or in theoretical astronomy, where you'll use maths and computer models to explain observations and predictions.

Astronomers are scientists who study the origin of the universe and its objects and how it works. As an astronomer, you can work in observational astronomy, using telescopes and cameras to look at the stars, galaxies and other astronomical objects, or in theoretical astronomy, where you'll use maths and computer models to explain observations and predictions.

A branch of science that deals with astronomical objects (like stars, moons, galaxies, etc.), space, and the physical universe as a whole.

A cent is a small unit of month worth one-hundredth of some currencies, for example the dollar and the euro.

A scan carried out at 18-22 weeks to determine if the baby is developing normally.

The mixture of gases that surrounds Earth, and that we breathe.

Country in North Africa.

The second-largest of the world's five oceans.

A person who is trained to travel in a spacecraft.

A person who is trained to travel in a spacecraft.

The voltage periodically changes from positive to negative and from negative to positive, and the direction of the current also periodically changes accordingly.

A process of combining two or more numbers to calculate a new value.

A process of combining two or more numbers to calculate a new value.

During active labor, contractions become stronger and closer together. Regular contractions open the cervix.

A doctor who is an expert in pain relief.

A doctor who is an expert in pain relief.

During pregnancy and before birth.

In, at, or to a higher place; higher in quantity or number.

A long, single nerve fiber that transmits messages, via electrochemical impulses, from the body of the neuron to dendrites of other neurons, or directly to body tissues such as muscles.

A neurodevelopmental disorder that affects attention systems and impulse control. While ADHD is primarily known as a pediatric disorder, it also affects adults.

Sometimes called a “spike” or described as a neuron “firing,” an action potential occurs when there is a significant increase in the electrical activity along the membrane of a nerve cell. It is associated with neurons passing electrochemical messages down the axon, releasing neurotransmitters to neighboring cells in the synapse.

Part of the immune system that responds to specific antigens.

Part of the immune system that responds to specific antigens.

An autotrophic organism can produce its own food from simple substances such as carbon dioxide, generally using energy from light or inorganic chemical reactions.

An autotrophic organism can produce its own food from simple substances such as carbon dioxide, generally using energy from light or inorganic chemical reactions.

An autotrophic organism can produce its own food from simple substances such as carbon dioxide, generally using energy from light or inorganic chemical reactions.

A type of reproduction that does not involve the fusion of gametes.

A type of reproduction that does not involve the fusion of gametes.

A large, Y-shaped protein used by the immune system to identify pathogens.

A large, Y-shaped protein used by the immune system to identify pathogens.

In plants, the part of a stamen that contains the pollen.

In plants, the part of a stamen that contains the pollen.

Multicellular, eukaryotic organisms in the biological kingdom Animalia.

Multicellular, eukaryotic organisms in the biological kingdom Animalia.

The protective liquid contained by the amniotic sac.

In evolution, adaptation is a change that makes an organism better suited to living in its environment. 

The protective liquid contained by the amniotic sac.

In evolution, adaptation is a change that makes an organism better suited to living in its environment. 

In evolution, adaptation is a change that makes an organism better suited to living in its environment. 

In digestion, absorption is the movement of nutrients from the intestine into the blood. 

In digestion, absorption is the movement of nutrients from the intestine into the blood. 

In digestion, absorption is the movement of nutrients from the intestine into the blood.

In digestion, absorption is the movement of nutrients from the intestine into the blood.

In ecology, abiotic factors are the non-living part of an ecosystem.

In ecology, abiotic factors are the non-living part of an ecosystem.

The envelope of gases surrounding the earth or another planet.

The industry involving people growing and harvest crops, raising animals or fish for food; farming.

The pressure exerted by the weight of the atmosphere, which at sea level has a mean value of 101,325 pascals (roughly 146959 pounds per square inch).

The envelope of gases surrounding the earth or another planet.

Arid climate-having little or no rain. Arid region-characterized by a severe lack of available water which prevents the growth and development of plant or animal life.

Relating to or denoting the current geological age, viewed as the period during which human activity has been the dominant influence on climate and the environment.

Tranferring resourcs from developed to less developed countries.

The science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.

A photograph taken from the air.

Country in Central Europe.

Country in Central Europe.

An independent principality situated between France and Spain in the Pyrenees mountains.

Country in the Balkans.

Later in time than

Later in time than

Area (mathematical)

Average (Mean)

Analogue

Autumn (used in a sentence)

Autumn

Area (place)

Moving in the opposite direction of the hands on a clock.

Moving in the opposite direction of the hands on a clock.

Moving in the opposite direction of the hands on a clock.

Analyse

Pain in the lower back that begins during labor; thought to be caused by the baby’s position within the pelvis, where their head presses against your spine and tailbone.

Symbols used in pairs to group things together.

Birthday (c) (used in a sentence)

Birthday (b) (used in a sentence)

Birthday (a) (used in a sentence)

Birthday (b)

Also known as manic depression or manic-depressive disorder, bipolar disorder is characterized by unpredictable changes in mood, as well as energy and activity levels, that can interfere with everyday tasks.

A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. Acts on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones. The brains of all species are composed primarily of two broad classes of cells: neurons and glial cells.

A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. Acts on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones. The brains of all species are composed primarily of two broad classes of cells: neurons and glial cells.

In brain science, refers to either half of the brain (left or right). The two hemispheres are separated by a deep groove, or fissure, down the center. Some major, specific brain functions are located in one or the other hemisphere. While popular culture suggests that “hemispheric dominance,” or which side of the brain is more active, can help inform how an individual best learns, research does not support this idea.

In brain science, refers to either half of the brain (left or right). The two hemispheres are separated by a deep groove, or fissure, down the center. Some major, specific brain functions are located in one or the other hemisphere. While popular culture suggests that “hemispheric dominance,” or which side of the brain is more active, can help inform how an individual best learns, research does not support this idea.

The passage of a small amount of blood or blood-tinged mucus through the vagina near the end of pregnancy.

The outer layer of the cerebrum. Sometimes referred to as the cerebral cortex.

A primitive part of the brain that connects the brain to the spinal cord, the brain stem controls functions basic to survival, such as heart rate, breathing, digestive processes, and sleeping.

A mass or growth of abnormal cells found in the brain. While people may commonly equate brain tumors with cancer, many tumors are benign—but their location in the brain can still interfere with normal brain function.

Birthday (a)

A position in which the feet or buttocks of the foetus appear first during birth.

A severe snowstorm with high winds.

A position in which the feet or buttocks of the foetus appear first during birth.

Aid from one donor to a recipient country.

Type of gas burner that produces a single open gas flame, commonly used as a heat source in laboratory experiments.

A gentle wind.

A line separating two countries, administrative divisions, or other areas.

Wind blowing in strong gusts.

The number of live births per thousand of population per year.

Country on the Balkan Peninsula in southeastern Europe.

Country in the Balkans.

Country in the Balkans.