Weather on Earth

Weather

100

A weather variable is . . . a.) the change in a condition used to predict the weather. b.) any weather factor that can change. c.) a condition that changes at regular intervals during the day. d.) any weather factor that stays about the same over a long period of time.

b.) any weather factor that can change.

200

What is weather?

Weather is the condition of Earth's atmosphere at any given time and place. Weather can vary from day to day.

300

Which statements are true about air. a.) Air can be compressed (pushed into a smaller space). b.) Air has no mass. c.) Air takes up space. d.) Air gets all its heat energy directly from the Sun's radiation. e. Air is a mixture of mostly oxygen and nitrogen.

True statements: a.) Air can be compressed (pushed into a smaller space). c.) Air takes up space. e. Air is a mixture of mostly oxygen and nitrogen.

400

Most weather happens in the layer of the atmosphere called the: a.) stratosphere, b.) mesosphere, c.) troposphere, d.) exosphere

c.) troposphere

500

What are the three most important variables used to describe weather? Wind direction, Water in the air, Air movement, Sunlight, Temperature

Water in the air, Air movement, and Temperature

Heating Earth

100

Why do materials such as water and soil heat at different rates, even if they receive the same amount of solar energy? a.) They are different colors. b.) One is wet, and the other is dry. c.) They have different energy-absorbing properties. d.) Their properties are similar, but their textures are different.

c.) They have different energy-absorbing properties.

200

Convection currents create . . . a.) wind b.) precipitation c.) humidity d.) clouds

a.) wind

300

Energy transferred in rays or waves from the Sun to Earth is called . . . a.) convection b.) evaporation c.) conduction d.) radiation

d.) radiation

400

The circulation of fluid (liquid or gas) that results from energy transfer causing warm masses to rise and cool masses to sink is called . . . a.) convection b.) conduction c.) condensation d.) confirmation

a.) convection

500

A woman bought a white wading pool for her grandchildren. She wanted to heat up the water fast. What should she do to heat the water as fast as possible? a.) Cover the pool with a clear plastic cover. b.) Put a sheet of dark blue plastic on the bottom and cover the pool with a clear plastic cover. c.) Put a sheet of yellow plastic on the bottom and leave the pool uncovered. d.) Put a sheet of black plastic on the bottom and leave the pool uncovered.

b.) Put a sheet of dark blue plastic on the bottom and cover the pool with a clear plastic cover.

Water Planet

100

A student was thirsty and poured some lemondade over ice in a glass. a few minutes later, she noticed that the outside of the glass was wet all over. The water on the outside of the glass . . . a.) was part of the lemonade that leaked through the glass to the outside. b.) came from water vapor in the air when it touched the cool glass. c.) slid over the top of the glass from the inside as the ice was melting. d.) must have resulted from the glass being spilled when placed on the table.

b.) came from water vapor in the air when it touched the cool glass.

200

How much of Earth's surface is covered by water? a.) about 70% b.) about 25% c.) about 90% d.) about 3%

a.) about 70%

300

Most of the water on Earth is found in . . . a.) ground water b.) glaciers c.) the atmosphere d.) the ocean

d.) the ocean

400

Write a description of the water cycle.

Key Points: The Sun heats up the Earth. Liquid water evaporates and turns into water vapor. The water vapor rises since it is less dense. When it reaches a certain elevation, it condenses into clouds. (It becomes tiny liquid water droplets.) When the liquid water in the clouds becomes too heavy, it begins to rain, sleet, snow, or hail back to Earth. This is called precipitation. The cycle starts all over again.

500

Draw and label a drawing using words and arrows to describe what happens during the water cycle.

Key Points: The water cycle should include the Sun to power the cycle, evaporation, condensation, and precipitation.

Weather & Climate

100

A weather map shows a symbol that has a curved, red line with "bumps" on it. This symbol represents what kind of a front: a.) stationary front b.) southern front c.) cold front d.) warm front

d.) warm front

200

T/F: A front is a large-moving thunderstorm.

F: A front is a large mass of moving air. This large mass of air can be warm or cold.

300

What type of weather occurs after a warm front moves in? a.) Heavy rain over a small area b.) Intense, short thunderstorms c.) Steady rain for an extended time d.) Warm, dry weather

c.) Steady rain for an extended time

400

What is the difference between weather and climate?

Climate is the average or the typical weather that can be expected to occur in a region of Earth. Climate is based on long-term observation and data analysis. A simple way to state the difference is that climate is what you expect, and weather is what you get.

500

A weather map shows a symbol that has a curved, blue line with little triangles on it. This symbol represents what kind of a front: a.) stationary front b.) southern front c.) cold front d.) warm front

c.) cold front