Weather

Question 1

Barometer

Answer 1

How does a weather man know when it’s going to rain? He measures the air pressure using a barometer. When the barometer shows low air pressure, the weather man knows that bad weather is on its way.

Question 2

Barometric pressure

Answer 2

The atmosphere is made up of layers of gases. These layers of gases push down on Earth. This push is called barometric pressure.

Question 3

Cirrus cloud

Answer 3

You can predict the weather by looking at the clouds in the sky. Some clouds are formed high in the sky and look like feathers. They are called cirrus clouds. Cirrus clouds are white and made up of ice crystals. If you see these clouds in the sky you should expect a change in the weather.

Question 4

Cloud

Answer 4

Where does rain come from? Clouds are formed by tiny drops of water in air. When these drops get bigger and heavier, they fall to Earth. That’s where rain comes from

Question 5

Drought

Answer 5

Droughts are prolonged periods of little or no rain. Lack of rain can affect us in many ways.

Question 6

Dew point

Answer 6

ometimes you can see tiny dew drops on blades of grass and leaves. How is dew formed? When air is warm it can hold more water vapor. At night air cools down. When the temperature drops below a certain point some vapor changes to water. We see this water as dew. The temperature at which dew is formed is called the dew point

Question 7

Cumulonimbus cloud

Answer 7

Sometimes cumulus clouds move upward with rising air. As they rise, they become dark and big. They are now called cumulonimbus clouds. They are also called thunderclouds. These clouds can cause sudden and heavy

Question 8

Cumulus cloud

Answer 8

Cumulus clouds are white and puffy. They are made up of water droplets. They look like balls of cotton wool in the sky. Cumulus clouds are flat at the bottom and rounded at the top. These clouds can grow upward and develop into thunderstorm clouds.

Question 9

Forecast

Answer 9

How does your teacher pick the best day for a field trip? She listens to the weather forecast. A forecast tells you what kind of weather you will have. Forecasts are made by studying things like temperature and wind direction

Question 10

Air pressure

Answer 10

What causes hot air balloons to fly? Air has weight. It pushes down on things on Earth. This is called air pressure.

Question 11

Front

Answer 11

You are enjoying a sunny afternoon at the beach. Suddenly, you see thunderclouds forming in the sky. How did this happen? The clouds formed when a mass of cool air runs into a mass of warm air. The area where these air masses meet is called a front. The weather can change very quickly at fronts

Question 12

Funnel cloud

Answer 12

Thunderstorms can make a funnel-shaped column of clouds. This column stretches down from the sky but does not reach the ground. When funnel clouds touch the ground, they are called tornadoes.

Question 13

Hail

Answer 13

Sometimes, water droplets in clouds freeze. The frozen drops move up into the cloud, carried by strong winds. More ice begins to form on them. When they become too heavy, they fall as hail. Some hailstones can be as large as baseballs

Question 14

Humidity

Answer 14

On a rainy day, wet clothes take longer to dry. Why does this happen? This is because air has a lot of water vapor in it. It cannot take water from the clothes as easily as on a sunny day. The amount of water vapor in the air is called

Question 15

Hurricane

Answer 15

Hurricanes are storms that begin over the oceans. They bring heavy rain and strong winds. These winds can have speeds over 100 miles per hour! Hurricanes often destroy houses and pull out trees

Question 16

Meteorology

Answer 16

Air masses form over large areas that have similar weather. A front is the boundary along which two air masses meet or collide. Different types of fronts bring different characteristic weather conditions. Recording and studying weather patterns makes it possible for meteorologists to forecast the weather.

Question 17

Thunder

Answer 17

Sometimes, when it rains, you see big flashes of light in the sky. Lightning superheats the air. Superheating the air causes a loud noise called thunder

Question 18

Thunderstorm

Answer 18

Sometimes hot and cold air meet in the atmosphere. The hot air rises above the cold air very quickly. Dark clouds form. Lightning flashes across the skies. These are followed by loud booms of thunder and rain. This is a thunderstorm

Question 19

Tornado

Answer 19

When a mass of cold air meets a mass of warm air, the cold air pushes the warm air up at great speeds. Sometimes this creates a twisting column of air, called a tornado. Tornadoes travel very fast. They can destroy anything in their path. Tornadoes are also called twisters

Question 20

Tropical depression

Answer 20

A hurricane usually starts as a low pressure system over warm tropical oceans. As the intensity increases, it develops into a tropical disturbance. As the storm develops sustained winds up to 38 mph, it is classified as a tropical depression. Winds rotate in a counter-clockwise direction in the Northern hemisphere.

Question 21

Typhoon

Answer 21

A typhoon is a severe tropical storm that originates in the Pacific Ocean, west of the International Dateline

Question 22

Weather

Answer 22

Is it raining outside? Or is it bright and sunny? The weather is what gives you an idea of how things are outside. It is a way to describe the outdoors at a given time and place