Discribe how 3 types of pricipataion form

Three simple forms of precipitation are: Rain, Snow and Hail.

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The most common types of precipitation:

Rain 
Drops of liquid water fall from the clouds when water vapor condenses around dust particles in the clouds, forming tiny droplets that eventually get too big for the cloud to hold so they fall, growing larger as they collect more water on their way down.

Snow 
Snow is ice that falls from the sky. Each snowflake is a delicately complex arrangement of ice crystals. A snowflake forms when water vapor sublimates, or turns directly from a gas into its solid form, ice.

Hail
Hail is ice that falls from the sky, often in round shapes. Hailstones form within thunderstorm clouds when upward moving air keeps pellets of frozen water from falling. The pellets grow larger as drops of very cold water hit them and freeze. Eventually the balls of ice become so large and heavy that they fall to the ground as hailstones. The largest documented hailstone weighted more than one and a half pounds! Scientists estimate that it reached a speed of more than 80 mph as it fell toward Earth.

Sleet 
Sleet is like slush falling from the sky. Sleet forms when raindrops freeze into ice as they fall to the ground. They are usually smaller and wetter than hailstones.

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.