SOLAR SYSTEM WORDS

a large piece of the Earth's surface, perhaps as large as a continent

a level of material, such as a type of rock or gas

to move easily through, or along the surface of a liquid, or to move easily through air

the process of passing something from one person or place to another

to take something in, especially gradually

relating to the earth

the regular changes in its shape as it appears to us on earth

a building or place used for a particular service or type of work

the way something is naturally made or the way it has been arranged

the universe considered as a system with an order and pattern

energy from heat or light that you cannot see

the centre of a planet

the curved path through which objects in space move around a planet or star

something that exists and can be seen, felt, tasted, etc., especially something unusual or interesting

the relationship between the mass of a substance and its size

a body of rock and ice that travels around the sun and that, as it nears the sun, develops a long tail of small pieces that can be seen

hard or firm, keeping a clear shape

a natural object moving around a larger object in space

a hard outer covering of something