Weather

Question 1

Weather Balloons

Answer 1

Helium-filled balloons that are launched 2 or more times per day from weather stations across North
America

Question 2

Weather Radar

Answer 2

A weather radar sends out radio waves that are then reflected by
objects in the air such as rain, snow, hail, etc.

Question 3

Remote Sensing Technology

Answer 3

Technology that collects data from a distance

Question 4

Weather Satellites

Answer 4

An orbiting spacecraft that regularly gathers weather-related data and images and transfers them to weather stations on the ground

Question 5

Meteorologist

Answer 5

A person who studies weather

Question 6

Forecasting

Answer 6

A meteorologist’s ability to predict weather conditions

Question 7

What are the types of Forecasting?

Answer 7

A short range forecast and a long range forecast

Question 8

How long does a short range forecast last?

Answer 8

A short range forecast is for a period up to 48 hours

Question 9

How long does a long range forecast last?

Answer 9

A long range forecast is for a period ranging from 4-7 days

Question 10

What is Persistence forecasting?

Answer 10

Assumes current weather patterns will continue into the future

Question 11

What is Nowcasting?

Answer 11

Relies on the use of remote sensing technology

Question 12

What is a Weather Map?

Answer 12

Weather maps show current atmospheric conditions

Question 13

What is an Isobar?

Answer 13

A line showing locations of the same atmospheric pessure

Question 14

What is an Isotherm

Answer 14

A line showing locations of the same temperature

Question 15

What is a cold front?

Answer 15

The leading edge of an advancing cold air mass

Question 16

What is a warm front?

Answer 16

The retreating edge of a cold air mass as a warm air mass approaches

Question 17

Stationary front

Answer 17

The boundary between two air masses that are not moving

Question 18

Occluded front

Answer 18

The boundary formed when a fast-moving cold front overtakes a slow moving warm front

Question 19

What is Climate

Answer 19

A set of environmental conditions averaged over many years

Question 20

What is an Ice Core?

Answer 20

A core sample that is typically removed from an ice sheet

Question 21

What is the Greenhouse Effect?

Answer 21

The greenhouse effect is a process in which certain gases in the atmosphere absorb heat from the sun and heat that is radiated from earth’s surface.

Question 22

______________ is a mechanism of energy transfer in which atoms or molecules
give off energy in the form of electromagnetic waves

Answer 22

Radiation

Question 23

What is a heat sink?

Answer 23

Any substance that can absorb and retain energy without changing state

Question 24

What is Conduction?

Answer 24

A thermal energy transfer between two objects or substances that are in direct contact

Question 25

What is Convection?

Answer 25

A thermal energy transfer by the movement of heated material from one place to another

Question 26

What is Atmospheric Pressure?

Answer 26

The pressure applied by air on its surroundings due to the weight of the air

Question 27

What is Humidity?

Answer 27

The amount of water vapour in the air

Question 28

What is a Dew Point?

Answer 28

Temperature at which air is saturated with water vapour so that it condenses and falls as precipitation

Question 29

What is an Air Mass?

Answer 29

a very large mass of air with nearly constant properties of temperature, humidity, and pressure

Question 30

What is a Front?

Answer 30

A zone that develops as a result of the meeting of two air masses with different characteristics