Astronomy
The galaxy that contains our Solar System.
What is the Milky Way?
The molecule that carries genetic information in living organisms.
What is DNA?
The chemical formula for water.
What is H2O?
The force that attracts objects toward the centre of the Earth.
What is gravity?
The outermost layer of the Earth.
What is the crust?
The star at the centre of our Solar System.
What is the Sun?
The process by which plants convert sunlight into chemical energy.
What is photosynthesis?
The chart that organises all known elements by their atomic number.
What is the periodic table?
An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an outside force.
What is Newton's First Law of Motion?
The shaking of the Earth's surface caused by the movement of tectonic plates.
What is an earthquake?
The distance light travels in one year.
What is a light-year?
The powerhouse of the cell.
What are mitochondria?
The type of chemical bond where atoms share electrons.
What is a covalent bond?
Approximately 300 000 kilometers per second.
What is the speed of light?
The continuous movement of water on, above, and below the surface of the Earth.
What is the water cycle?
The fourth planet from the Sun, known as the Red Planet.
What is Mars?
Large molecules composed of amino acids and essential for all living organisms.
What are proteins?
The smallest unit of an element that retains the properties of that element.
What is an atom?
The energy that an object possesses due to its motion.
What is kinetic energy?
An opening in the Earth's crust that allows molten rock, gases, and debris to escape to the surface.
What is a volcano?
A region of space having a gravitational field so intense that no matter or radiation can escape.
What is a black hole?
The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms.
What is evolution?
The scale used to specify the acidity or basicity of an aqueous solution.
What is pH?
A particle representing a quantum of light or other electromagnetic radiation.
What is a photon?
The process by which natural forces like water, wind, and ice wear away rocks and soil.
What is erosion?