Science Assessment

CL043002

In the northern hemisphere, the farther north a place is from the equator, the lower is the maximum height that the sun reaches in the sky both in January and in July.

CL048002

Sometimes the North Pole has the most hours of daylight compared to everywhere else on earth, and sometimes it has the fewest, but the equator has the same number of hours of daylight every day of the year.

WC033002

Sunlight feels warmer in the middle of the day than in the morning because the sun is higher in the sky in the middle of the day.

WC039002

The angle at which sunlight hits any given place on the earth's surface changes continuously throughout the day.

WC040003

Sunlight warms a lake more when the sun is higher in the sky than when it is lower in the sky.

WC105001

Sunlight transfers different amounts of energy to a lake depending on the position of the sun in the sky.

WC041003

Sunlight can warm a lake by different amounts during a day depending on the position of the sun in the sky.

WC043002

The amount of energy that is transferred from the sun to a given place on the earth's surface changes depending on where the sun is in the sky.

WC107001

Both the blocking of sunlight by clouds and the height of the sun above the horizon affect the amount of energy transferred from the sun to a place on the earth's surface.

WC093002

A plant receives the most intense sunlight in the middle of the day when the sun is highest in the sky.

WC117001

A plant receives the most energy from sunlight in the middle of the day when the sun is highest in the sky.

WC037003

The temperature of a glass of water left outside in the sun increases more in the middle of the day than in the morning because the angle at which sunlight strikes the earth is different in the middle of the day than in the morning.

CL038001

In the northern hemisphere, if the maximum height the sun reaches in the sky is lower throughout the year at one place than at another place, the place where the maximum height the sun reaches is lower is farther north.

CL083001

At all times during a day there is only one point where sunlight is striking the surface of the earth at a 90° angle.

CL102002

Only in March and September does the sun reach its maximum height in the sky at the equator.

CL106002

The amount of sunlight reaching the northern hemisphere is equal to the amount of sunlight reaching the southern hemisphere on a day in March and a day in September

CL030002

In the northern hemisphere, the maximum height the sun reaches in the sky is greater in March than in January.

CL031002

In the northern hemisphere, the maximum height the sun reaches in the sky gets a little higher each day in January.

CL140001

For a place south of the tropical region, the maximum height of the sun in the sky gradually gets a little lower each day in January.

CL032002

For a place in the northern hemisphere, the maximum height the sun reaches in the sky changes each day in both January and December.

CL033002

For places that are north of the topical region, the maximum height the sun reaches in the sky increases each day for six months and then decreases each day for the next six months.

CL034002

For places in the northern hemisphere and north of the tropical region, the maximum height the sun reaches in the sky is a little greater each day between January and May.

CL035002

For a place that is north of the tropical region, the maximum height the sun reaches in the sky gets a little lower each day in July.

CL039002

In the southern hemisphere, if the maximum height the sun reaches in the sky is lower throughout the year at one place than at another place, the place where the maximum height of the sun is lower must be farther south.

CL040002

In the northern hemisphere, the maximum height the sun reaches in the sky is greater in the summer than in the winter.

CL071002

Sunlight strikes the earth at a 90° angle at only one place at any given time.

CL053002

Both the intensity of sunlight and the amount of time the sun is above the horizon change a little every day at a place in North America.

CL080002

The sun is directly overhead at only one place on earth at a single moment.

CL082002

For two places equally close to the place where the sun is directly overhead, the sun will be the same height in the sky at those two places at the same moment in time.

CL083002

At any time during a day there is only one point on the surface of the earth where sunlight strikes at a 90° angle.

CL084002

Sunlight strikes only one point on the sunlit side of the earth at a 90° angle at any given time.

CL109002

Of three places in the northern hemisphere that are at the same longitude but different latitudes, when the north pole is pointed toward the sun the place closest to the north pole receives the greatest number of hours of daylight.

CL110002

Of three places in the northern hemisphere that are at the same latitude but different longitudes, when the north pole is pointed toward the sun all three places receive the same number of hours of daylight.

CL111002

Of two places in the northern hemisphere at the same longitude and different latitudes, the place that is the farthest north will have a longer daytime in May but not in February.

CL112002

During a day in August, of the north pole, the south pole, and the equator, the north pole has the greatest number of hours of daylight.

CL148001

For two places at different latitudes and different longitudes, the place that is farther north of the equator has more hours of daylight in July.

CL113002

During a day when the earth’s axis is not tilted at all toward or away from the sun, all places on earth would have an equal number of hours of daylight on that day.

CL119002

For a place where the sun is directly overhead in the middle of the day in late December, the sun would not pass directly overhead at any time in February.