I wander through the cosmic sea, Neither star nor moon to be. Metal, rock, and ice I hide, In belts and fields, I like to bide. I’ve no light, yet still I roam, Between the planets, far from home. A crater’s birth I may bestow— What am I? Do you know?

(a)  

Irregularly-shaped fragments of rocks that orbit the sun.

(a)  

Asteroid also known as (a)  

The region between the orbits of Mars and Jupiter is known as the _

(a)  

Millions of asteroids orbit in this belt. There are different kinds of asteroids

(a)  

has similar composition with Sun’s composition which is depleted in hydrogen, helium, and other volatiles.

(a)  

are relatively bright and is made up of silicate materials and nickel-iron. It dominates the inner asteroid belt.

(a)  

includes the rest of the known asteroids. It is known as metallic. They are also bright in color.

(a)  

is dominated by nickel and iron. It inhabits the main belt's middle region.

(a)  

253 Mathilde,

(a)  

433 Eros,

(a)  

21 Lutetia

(a)  

asteroids that orbit in the main asteroid belt are called _

(a)  

_ are those that have orbits which approach Earth.

(a)  

are asteroids that share an orbit with a larger object. They do not collide with the planet because of their special locations in orbit.

(a)  

I blaze a trail without a flame, A glowing tail is my acclaim. From icy depths I come and go, A traveler putting on a show. I visit suns, then flee their light, My path is long, my time not slight. dust and ice, my form is set— Guess me right, have you yet?

(a)  

An icy body that releases gas or dust.

(a)  

Scientists call them cosmic snowballs because they are made of frozen gases that are held together in rocky and metallic materials.

(a)  

The word comet comes from the Greek Word kometes, which means _

(a)  

those comets that take less than 200 years to complete a single orbit around the sun are called _

(a)  

those that take hundreds of thousands of years just to take single orbit around the sun

(a)  

the main, solid part of the comet

(a)  

is a halo of evaporated gas and dust that surrounds the nucleus.

(a)  

is composed of the coma and nucleus of the comet.

(a)  

parts of a comet

(a)  

is the tail that always faces away from the sun

(a)  

is made of electrically charged gas. It is also called the plasma or gas tail.

(a)  

Preserve original material from when the solar system formed, helping scientists study its early history

(a)  

Some scientists believe comets may have brought water and organic molecules to early Earth

(a)  

Their bright tails and jets give clues about the Sun’s heat and solar wind.

(a)  

Most Famous Comet –

(a)  

I’m small, I roam the void with might, Too tiny for your naked sight. A cosmic speck, a drifting stone, Until I find a world to own. When I fall, I light the skies, A fiery streak before I die. But catch me first, while still I glide— What am I, out in space I bide?

(a)  

are boulders and rocks in the space.

(a)  

I don’t have light, yet still I glow, Reflecting suns from long ago. I change my face throughout the night, From silver sliver to full light. I pull the tides, I watch the skies, A silent guard with cratered eyes. Earth’s lone dancer, slow and soon— Can you name me? I’m the…?

(a)  

Moon also called as_

(a)  

Moons follow their parent planet around the Sun, bound by gravity. They can help stabilize a planet’s tilt and rotation

(a)  

Moons exert gravitational pull on their planets, causing tides in oceans or even in the planet’s crust (tidal heating)

(a)  

Example: Jupiter’s moon Io is volcanically active due to tidal heating from Jupiter’s gravity.

(a)  

Is a vast, all-encompising space that includes everything in existence from the tiniest particles to the largest galaxies

(a)  

The (a)   is a cosmological model that explains how the universe began

It suggests tht the universe started it's expansion about _ billion years ago based on latest calculation

(a)  

The concept of _ is not a literal explosion of something that led to the creation of the universe

(a)  

The universe started as a _ an area predicted to be in the core of a black hole with very high temperature and density

(a)  

_ is the formation of elements, such as h and he

(a)  

Evidence that supports the big bang theory

(a)  

Was the first proponent of the theory. He suggested the idea of the expanding universe

(a)  

Provided an evidence that the universe was not static but expanding

(a)  

These waves were referred to as the cosmic microwave background radiation

(a)  

The _ theory is another view that proposes that the universe has always been expanding

(a)  

_ universe theory, also known as pulsating theory, proposes that the universe is expanding and will contract once all the energy after the big bang has been used up

(a)  

Oscillating universe theory, also known as

(a)  

Tolman called the birth of another universe as the

(a)  

According to the nebular theory, the solar system originated from a

(a)  

Widely accepted view about the formation of the solar system some _ billion years ago

(a)  

Hypothetically, a shockwave from a supernova or the effect of a passing star may cause a _

(a)  

_ is a small celestial body that once collide together

(a)  

It proposes that a passing star turned as intruding star nearly collided with the protosun

(a)  

_ proposed that accretion of minute solid particles created planets and their moons rather than by gaseous or liquid material condensation

(a)  

Provided the mathematical calculations to chamberlins idea

(a)  

It explains that the solar system formed as a result of a near collision between a passing star and the sun

(a)  

The third planet in the solar system

(a)  

It is one of the major themes of the earth's subsystems

(a)  

It is the process wherein the material in the earth system was continuously recycled in numerous overlapping cycles

(a)  

Comprises the solid earth and includes both earth surface and the various layers of the earth interior.

(a)  

Gaseous envelope that surrounds the earth and constitutes the transition between the vacuum of space

(a)  

Includes all water on earth (including surface water and groundwater)

(a)  

The life zone of the earth and includes all living organisms, and all organic matter that has not yet decomposed

(a)  

Where we live

(a)  

Which contains the ozone layer

(a)  

Where meteors burn

(a)  

Where satellites orbit earth

(a)  

It is the cycle happening in the atmosphere that is a way of redistributing the heat from the sun to the surface of the earth

(a)  

It is the cycle that explains the continuous movement of the water, above or below the earth surface

(a)  

The sun is the driving agent of this cycle

(a)  

It also involves the transfer of energy

(a)  

It is a part of the Geosphere that is composed of the solid, outermost part of the planet

(a)  

The lower mantle is dominated by the mineral

(a)  

The layer of hot, solid material between earth crust and core

(a)  

Is the outermost layer of earth, composed of the crust and the brittle part of the upper mantle

(a)  

The soft, flexible upper layer of the mantle, on which the tectonic plates move

(a)  

The solid lower layer of the mantle located below the asthenosphere. This layer is composed of semi-solid ultra high - pressure silicates

(a)  

The process by which hot, less dense material rises upward and is replaced by cold, more dense, downward-flowing material

(a)  

Is a liquid layer (core)

(a)  

Hottest part of earth

(a)  

The boundary between crust and mantle

(a)  

The semi liquid part of the mantle where plate tectonics float and move

(a)  

The boundary between outer and inner core

(a)  

The boundary between mantle and core

(a)  

Forces that build up mountains etc.

(a)  

Forces that slowly wear away any feature

(a)  

Responsible for earth magnetic field

(a)