Solar System Quiz: Planetary Paths and Features

The vast expanse containing all matter and energy, including stars, galaxies, planets and more. It's incredibly large, billions of times bigger than our solar system.

The Sun, Earth, and other planets and celestial objects orbiting the Sun.

The imaginary line that circles the Earth at zero degrees latitude, dividing it into the Northern and Southern hemispheres.

Imaginary lines that run from the North Pole to the South Pole, measuring distances east and west.

The motion of Earth rotating on its axis, completing one rotation in approximately 24 hours, resulting in day and night.

The Sun is the central body of the solar system. It provides light and heat, influencing the planets and their orbits.

Planets are celestial bodies that orbit the Sun and do not produce their own light or heat.

The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. They orbit the Sun in nearly circular paths influenced by its gravity.

Jupiter is the largest planet, and Mercury is the smallest. Each planet takes a different time to revolve around the Sun due to its distance.

The Sun's gravitational pull and its energy keep the planets in their orbits.

The layer of gases surrounding Earth, held by gravity and rotation. It's densest at sea level and thins with altitude. It plays a vital role in weather, climate, and life.

The bottom layer of the atmosphere, closest to Earth's surface. It's where weather happens (clouds, rain, wind).

The boundary between the Troposphere and Stratosphere. Air is relatively still here.

A layer in the Stratosphere that absorbs harmful UV radiation from the sun. A vital shield for life on Earth.

Essential gas for breathing, allowing animals to survive. Produced by plants through photosynthesis.

Jupiter is the largest planet in our solar system, known for its massive size and numerous moons. It's a gas giant with a dense atmosphere and a swirling red spot, a giant storm.

Saturn is the second largest planet, characterized by its prominent ring system made of ice and rock particles. It's a gas giant with a faint atmosphere and several moons.

Uranus is a giant planet with a tilted axis, making it appear to rotate on its side. It has a faint blue-green color due to its methane-rich atmosphere and many moons.

Neptune is a blue-colored gas giant known for its strong winds and its large moon, Triton. It's the farthest planet from the sun and has a cold, dense atmosphere.

Earth's atmosphere is a protective layer of gases that shields us from harmful radiation and helps regulate our climate. It's composed of several layers, with the troposphere being the lowest where we live.

The closest planet to the Sun, and the smallest in our solar system, with a diameter of 4,850 kilometers. It's incredibly hot due to its proximity to the Sun and experiences extreme temperature variations.

Venus, the hottest planet in our solar system, is known for its thick atmosphere primarily composed of carbon dioxide. This greenhouse effect traps heat, leading to extremely high surface temperatures.

Earth, the only known planet to harbor life, is unique for possessing liquid water and an atmosphere containing oxygen. This combination allows for biological processes to thrive.

Mars, known as the 'Red Planet' due to its rusty surface, is characterized by its thin atmosphere and cold climate, considered unsuitable for life as we know it.

The Moon, Earth's only natural satellite, plays a key role in stabilizing Earth's rotational axis, influencing tides and providing a source of light at night.

Seismic waves are used to study the Earth's interior. They travel through different layers at different speeds, allowing scientists to create a picture of the Earth's structure.

The Earth's core is mainly made up of iron and nickel. It consists of a solid inner core and a liquid outer core.

The Earth's mantle is a thick layer of rock that lies between the crust and the core. It's mostly made of heavy metals like silicon and magnesium.

The Earth's crust is the thin, outermost layer of the Earth. It's made up of various rocks and minerals.

The Earth's layers are not uniform. The thickness of the crust varies across the globe, depending on location.

An imaginary line that circles the Earth at zero degrees latitude, dividing it into the Northern and Southern hemispheres.

An internationally agreed-upon reference meridian, running through the Royal Observatory in Greenwich, UK. It's considered as 0° longitude.

A measure of the position of a location east or west from the Prime Meridian.

Meridians are important for determining local time. The angular distance of a meridian from the Prime Meridian decides the local time.

One degree of longitude equals about 4 minutes of local time difference.

Imaginary lines running north-south, intersecting at the poles. They measure the east-west position of locations.

The time at a specific location based on the position of the sun.

The time at the Greenwich Meridian, used as a universal reference.

The difference in time between a location and Greenwich Mean Time (GMT).

The time based on the position of the sun at a specific location, determined by the angle of the sun at that longitude.

A standardized time system used within a country, ensuring consistency across different regions. It's often based on a specific meridian.

The difference in local time between two locations is directly related to the difference in their longitudes. Every 1 degree difference in longitude results in a 4-minute difference in time.

Greenwich Mean Time (GMT) is the reference time for the world, based on the 0-degree meridian (Greenwich Meridian). Other countries adjust their standard times based on their longitude.

The time difference between Dhaka (90° East) and Seoul (128° East) is 6 hours because of the 38° difference in longitude. If it's 12 noon in Dhaka, it's 6 PM in Seoul.

An imaginary line that runs through the center of the Earth from the North Pole to the South Pole.

The reference line for longitude, measuring the distance east or west. It typically passes through Greenwich, England.

Lines of longitude running from pole to pole, measuring the distance east or west of the prime meridian.

Lines parallel to the equator, used to measure the distance north or south of the equator.

The Earth's shape is slightly flattened at the poles, which is why latitude is measured in angular degrees, and not in distances.

Lines of latitude that mark the furthest extent of the sun's direct rays. They influence climate patterns across the globe.

Lines of latitude that mark the Arctic and Antarctic circles, defining regions of polar night and polar day.