Math and Physics
This force pulls objects toward one another and keeps planets in orbit around the sun.
Gravity
This is the smallest unit of data in computing, represented as either a 0 or a 1.
A bit
This layer of Earth's upper atmosphere absorbs most of the sun's harmful ultraviolet radiation.
The Ozone Layer
Known as the "powerhouse of the cell," this organelle generates most of a cell's chemical energy.
Mitochondrion
This is the smallest unit of an element that still retains all the chemical properties of that element.
An atom
This Greek letter represents the ratio of a circle's circumference to its diameter, approximately 3.14159.
pi
This high-level programming language, named after a British comedy troupe rather than the snake most people assume, is a favorite for AI and data science.
Python
What is the most observed bird in Singapore?
Javan Myna
This double-helix-shaped molecule carries the genetic instructions for all known living organisms.
DNA
This chart arranges all known chemical elements by increasing atomic number and recurring properties.
The periodic table
What speed does light travel through a vacuum at?
About 300,000 km per second.
This theoretical device, described in 1936, is considered the mathematical foundation of all modern computers.
Turing machine
What are the three main sources of food for long-tail Macaques?
Fruits, plants and small animals
This process allows plants to convert sunlight, water and carbon dioxide into food, releasing oxygen as a byproduct.
Photosynthesis
Reactions that release energy in the form of heat, like combustion, are classified as this type.
An exothermic reaction
This physicist's theory of general relativity showed that gravity is actually the curving of space and time.
Albert Einstein
Working with Charles Babbage's Analytical Engine in the 1840s, this mathematician wrote what's considered the first computer algorithm, earning her the title "first computer programmer."
Ada Lovelace
This critically endangered primate — recognizable by its black coat and white facial markings — has slowly recovered in Singapore's nature reserves from a population low of around just 10 individuals.
Raffles’ Banded Langur
This type of cell division produces two genetically identical daughter cells and is used for growth and repair in the body.
Mitosis
Discovered in 1898 by Marie and Pierre Curie and named after Marie Curie's native homeland, this radioactive element was the first one Marie Curie discovered.
Polonium
This law of motion states that force equals mass multiplied by acceleration (F = ma).
Newton’s Second Law
This type of computing system is loosely modeled on the human brain, using layers of connected "nodes" to power modern AI like image and speech recognition.
A neural network
This critically endangered species of freshwater crab exists nowhere else on Earth except a few streams within Singapore's nature reserves, making it one of the country's top conservation priorities.
Singapore freshwater crab (Johora singaporensis)
In 1936, this Filipino pediatrician was accidentally admitted to Harvard Medical School due to a records mix-up — nearly a decade before Harvard officially began admitting women in 1945 — making her widely credited as the school's first female student.
Fe del Mundo
This is the only letter of the alphabet that does not appear anywhere in the official symbols of the periodic table.
J