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Grade 2 Study Guide – Science – SOL 2.6

-The Earth’s weather changes continuously from day to day. Vocabulary

weather- How the outside air feels and looks. -Changes in the weather are characterized by daily differences in , ,

and precipitation. forecast- a prediction about what kind of weather to expect - Weather affects how we dress and the activities in which we participate. For wind- moving air that can change in speed and example, farmers keep track of the weather to know when to plant and harvest direction their crops. temperature- lower means colder and higher means

warmer; measured in Fahrenheit (F) or Celsius (C)

Weather Conditions can be described as; precipitation- that falls from the that can be liquid or solid sunny cloudy win dy rainy snowy weather instrument- a tool that is used to measure weather

– the process in which water can

change from a liquid to , produce , and then fall down as precipitation

meteorologist- A scientist who studies and predicts the weather by measuring, observing and recording weather data. Types of Precipitation

sleet

Created by Sara Gauldin Types of Weather Instruments

measures the temperature of the air

measures the amount of rain or snow that falls to the ground

weather or shows the direction wind vane the wind is blowing from

measures the speed Key ideas: Weather data is collected and We can measure and of the wind recorded using instruments. record weather data, This information is very useful using weather for predicting weather and instruments, including a determining weather patterns. thermometer, rain gauge, and weather vane

Created by Sara Gauldin Types of a loud, windy a heavy snowstorm with strong with , thunder and freezing and rain that happens ; also very when warm, wet air damaging and dangerous meets colder, drier air

a powerful swirling a lot of rain falls in a short windstorm with a black amount of time that causes funnel-shaped ; lakes, , and to very damaging and overflow dangerous

hurricane a large wind and rain a long period of time without storm that forms over precipitation (rain) ; as it hits , it begins to become weaker; also very dangerous and damaging

Created by Sara Gauldin

The Water Cycle

condensation - When cold air and warm air meet, a gas changes to a liquid. So as the water vapor in the air rises, it meets cold air and condenses into drops which come together with dust to form .

evaporation - When the sun heats the water and the water

precipi tation - This is water turns from a liquid to a gas called water vapor. Water vapor that falls from the sky in the is all around us but it is form of rain (liquid water) snow, sleet, or hail (frozen invisible. - water.)

collection or storage - Water falls to the earth and eventually becomes Created by Sara Gauldin or is stored in