Materials of the earth`s surtace

materials of the earth`s surtace
* write a list of the materils that you can see in the air, water and on a beach it self .
-salt .
- water .
* what part of the earth can you see it you stand on the seashare ?
Answer// water, ocean, palms, sand, rocks..
*when we walk on sand it oppears to be very soft .
- Are the grains of sand soft or hord?
Answer// when a lame a lot of sand is soft and small seeds
*what is the relationship between the rocks and the sond of the beach.
Answer// that the rock is harder and resistant and sand that is soft and small seeds
the earth is made up solid, liquid and gaseous matter
materials in the atmosphere:
gaseous materials. there are also some liquids and solid materials like the minute drops ot water and ice that make up the cloud. As for as we concerned the most important materials in the atmosphere is the air .
Air is not a gas but a mixture of gases.
It is made up of 78% nitrogen, 21% oxigen and 1% other gases