Snow
Hail
Rain
Fog
Vocabulary
100

What is tiny water droplets that has frozen together.

What is snow is precipitation that forms when water vapor freezes. 

Snow falls as ice crystals from clouds when temperatures drop below freezing and there is enough humidity in the air.

100

Describe hail?

What is hail is a form of precipitation consisting of solid ice that forms inside thunderstorm updrafts.

100

How fast can rain fall?

What is between 15 and 25 miles per hour depending on the size of the precipitation drop?

100

A visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface.

What is fog?

100

The study of atmosphere and weather

What is meteorology?

200

Snowflakes are never..

What is the same shape?

200

About how big is the largest piece of hail every recorded?

What is 8 inches in diameter and fell in Vivian, South Dakota? 

Grapefruit-sized hail is not uncommon in severe storms. While basketball-sized hail is incredibly rare, it's not impossible under extreme conditions.  

200

Rain starts out is a cloud as...

What is liquid water or ice?

200

The type of cloud related to fog.

What is a layer of stratus clouds on or near the ground? 

Fog can be considered a type of low-lying cloud usually resembling stratus and is heavily influenced by nearby bodies of water, topography, and wind conditions. 

200

A flat cloud that produces rain or snow



Stratus clouds that possess a flat and uniform type texture.

300

It is never too...

What is too cold for snow?

300

How does hail form?

What is: hail forms when thunderstorm updrafts are strong enough to carry water droplets well above the freezing level. This freezing process forms a hailstone, which can grow as additional water freezes onto it. Eventually, the hailstone becomes too heavy for the updrafts to support it and it falls to the ground.

300

What shape does a raindrop fall as?

What is small raindrops (radius < 1 millimeter (mm)) are spherical; larger ones assume a shape more like that of a hamburger bun?

300

Fog is best known to...

What is to decrease visibility?

300

The molecules of water cling to each other more than they do to the air. This makes them seek to minimize their surface area per unit of volume.

What is coalescence?

 

400

How cold does it have to be to snow?






What is 0°C or 32°F?

Snowstorms also rely heavily on temperature, but not necessarily the temperature we feel on the ground. Snow forms when the atmospheric temperature is at or below freezing (0°C or 32°F). If the ground temperature is at or below freezing, the snow will reach the ground.
400

About how many people are injured by hail a year?

What is on average, twenty four people in the United States are injured each year from hail.

400

What is rain?

What is liquid precipitation: water falling from the sky? 

Raindrops fall to Earth when clouds become saturated, or filled, with water droplets.

400

How does fog start?

What is fog appears when water vapor (water in its gaseous form) condenses?

400

The atmospheric temperature (varying according to pressure and humidity) below which water droplets begin to condense and for liquid water.

What is the dewpoint?

500

The size of the snow flake depends on..

What is the size and shape of the crystals depend mainly on the temperature and the amount of water vapor available as they develop?

500

What size does hail range from?

What is a pea to larger than a grapefruit?

500

About how many days does it rain on Mt. Waialeale in Kauai, Hawaii?

What is about 350 days a year?

500

Where does the moisture for fog come from?

What is a local source of water?

It could come from a local body of water, ground water, even a larger source of water some distance way.

500

The type of weather that forms on the wind-ward side of mountains, air is forced upward which causes humidity, which creates clouds and rain

What are Orographic clouds?

The type of cloud that forms depends on the air stability and moisture content. Air also rises up a slope due to daytime heating so both orographic and thermal lifting often work together to produce tall, vertically developed Cumulus clouds.

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