Lesson 7 and 8 - Earth Sun Relationship

What causes the seasons to change?

• The Earth's distance from the Sun
• The waming and cooling of Earth's core
• The Earth's tilt in relation to the sun
• The Earth rotation on its axis.

What happens when the area in which you live tilts away from the sun?

• It's summer in your area
• It's spring in your area
• It's fall in your area
• It's winter in your area

What happens when it's spring in the Southern Hemisphere?

• It's fall in the Northern Hemisphere
• It's summer in the Northern Hemisphere
• It's winter in the Northern Hemisphere
• It's spring in the Northern Hemisphere

Sunlight strikes the equator at an angle _____________

• more than 90 degrees

• of 90 degrees

• less than 90 degrees

• of 45 degrees

How are winters in the Northern Hemisphere different from winters in the Southern Hemisphere?

• Winter days are short in the Northern Hemisphere, and long in the Southern Hemisphere
• Northern Hemisphere winters are cold, Southern Hemisphere winters are hot
• In the Northern Hemisphere, winter lasts from December to March; In the South, it lasts from June to September
• In the Northern Hemisphere winter lasts from June to Septermber. In the South it lasts from December to March.

Why does the area around the equator stay the same temperature year-round?

• It remains the same distance from the sun year round.

• It receives the same intensity of direct sunlight year round.

• Its days are more than 18 hours long year round

• The equator rotates slower than the poles

What is unique about the sunlight at the north and south poles? (two correct answers)

• The intensity remains the same over the summer months

• They both experience about 6 months of darkness a year.

• the intensity remains the same during the winter months

• They both experience 6 months of having no sunsets.

If you live in the Northern Hemisphere, on which day of the year will your hometown receive the most daylight?

• September 21
• December 21
• March 21
• June 21

Where and when would you find almost 24 hours of daylight?

• In South America during spring
• In the Arctic Circle during summer
• In Jamaica during winter
• In the Antarctic Cirlce during winter

Unlike the poles, where the length of each day changes drastically throughout the year, the length of each day at the equator is:

• Consistent
• Long
• Short
• Variable