The Moon
The term used to describe the phase of the Moon when it appears as a complete circle in the sky.
What is the Full Moon?
This planet lies within the habitable zone in our solar system and is the only one that contains liquid H2O.
What is Earth?
The first stage of a star's life cycle, where a star begins to form from a cloud of gas and dust?
What is a Nebula?
The name of the closest star to Earth.
What is the Sun?
This mysterious substance makes up approximately 27% of the universe's mass-energy content, yet it does not emit, absorb, or reflect light, making it invisible and detectable only through its gravitational effects.
What is Dark Matter?
The term used to describe the phase of the Moon when only a small sliver of the Moon is visible in the sky?
What is the Crescent Moon?
The planet in our solar system is the closest to the Sun.
What is Mercury?
During the main sequence stage, this process occurs in a star's core to produce energy.
What is nuclear fusion?
The constellation is known as the "Big Dipper".
What is Ursa Major also known as?
These massive systems consist of stars, star clusters, interstellar gas, dust, and dark matter, all bound together by gravity, with the Milky Way being an example.
What are Galaxies?
The term used to describe the phase of the Moon when it is completely dark and not visible from Earth?
What is the New Moon?
The planet in our solar system experiences extreme temperatures due to its thick atmosphere, making it the hottest planet despite not being the closest to the Sun?
What is Venus?
The stage in a star's life cycle when it expands and cools after using up most of its hydrogen fuel.
What is a red giant?
The name of the star that is the brightest in the night sky?
What is Sirius?
These objects, both natural and artificial, orbit planets and are used for communication, weather monitoring, and scientific research, with the Moon being a natural example.
What are satellites?
The term used to describe the phase of the Moon when it is transitioning from a Full Moon to a New Moon?
What is the Waning Gibbous?
The planet that has 146 confirmed moons as of 2024, making it the planet with the most moons in our solar system?
What is Saturn?
The extremely dense object that remains after a supernova if the original star was very massive.
What is a black hole?
Which constellation is named after a hunter from Greek mythology?
What is Orion?
Sirius, Canopus, and Arcturus are examples of these exceptionally luminous objects, often used for navigation and prominently visible from Earth.
What are the brightest stars in the sky?
The term describes the phenomenon where the gravitational pull of the Moon causes the Earth's oceans to bulge, resulting in the daily rise and fall of sea levels known as tides?
What is tidal force (or tidal effect)?
Named after the Roman god of the sea, this planet in our solar system is often referred to as the "Ice Giant".
What is Neptune?
The explosion that occurs at the end of a massive star's life cycle?
What is a Supernova?
The name of the star that is currently closest to the north celestial pole, often referred to as the North Star.
What is Polaris?
These celestial bodies orbit stars outside our solar system, with thousands discovered by telescopes such as Kepler and TESS, expanding our understanding of planetary systems.
What are Exoplanets?