| A | B |
|---|
| What is El Nino? | periodic changes in ocean currents in the mid-Pacific region |
| When does El Nino occur? | Not every year, but the frequency has increased in last 50 years |
| How does El Nino affect climate? | Change in currents, temperature, and precipitation |
| What causes the seasons? | tilt of the Earth at 23 1/2 degrees, Earth's revolution around sun in elliptical pattern |
| What is the tilt of the Earth's axis? | 23 1/2 degrees |
| What is the reversal of seasons? | The seasons are reversed north and south of the Equator. |
| What places on Earth receive the most direct sunlight and why? | Between the tropics and the equator; these areas have low latitutdes. |
| What is the climate in the tropics? | Very hot temperatures |
| What part of the Earth has variable weather and temperate climate? | Mid-latitudes |
| Describe a temperate climate. | Experiences both cold and hot temperatures. |
| What part of the Earth has continuous but indirect sunlight for 6 months? | High latitudes between polar circles and poles |
| What causes a low pressure area? | warm air rising |
| What causes a high pressure area? | falling cool area |
| In which direction does the Earth rotate? | toward east |
| How do winds distribute the sun's heat across the Earth? | warm air rises, cool air flows in to replace warm air, this causes wind which distributes the sun's heat |
| In which direction do prevailing winds usually blow? | The direction is determined by latitude and is affected by Earth's movement |
| Describe the windward side of a mountain. | The side facing toward where the wind is blowing from |
| Describe the leeward side of a mountain. | The side facing away from where the wind is blowing from |
