From morning until evening, the Sun appears to move across the sky. What causes this apparent motion of the Sun?

It is lunchtime and sunny where Maya lives, while it is the middle of the night on the opposite side of Earth. What explains this?

Earth takes about one year to travel all the way around the Sun. What is this motion of Earth called?

About how long does it take Earth to make one full rotation on its axis?

What causes Earth to have seasons?

Earth's axis stays tilted in the same direction all year as Earth travels around the Sun.

Earth's rotation and Earth's revolution are two different motions. Which pair correctly matches each motion to what it causes?

During summer in the southern half of Earth, that half is tilted toward the Sun. What does that tilt do for that half of Earth?

A town in the southern half of Earth is having its warmest weather and its longest days. What season is the northern half of Earth having at that same time?

What is Earth's axis?

At noon a tree casts a short shadow. By late afternoon the shadow is long and points a different way. What causes the shadow to change during the day?

A student notices that the days keep getting longer week after week as spring turns to summer. What causes the days to get longer?

The bar graph shows the number of daylight hours recorded in a town on one day in each of the four seasons. Based on the data, which season has the fewest daylight hours?

On the same morning, people in New York see the Sun rise about three hours before people in California do. Why does the Sun rise in New York first?

The bar graph shows the average noon temperature recorded in a town during four different months. Based on the data, which month was the warmest?

The line graph shows the number of daylight hours recorded once a month in a town from January to June. Based on the pattern in the data, what is happening to the daylight hours?

In the United States, the Sun usually appears to rise in the _____.

During the day, the Sun appears to move across the sky mostly from _____.

The line graph shows the average temperature recorded once a month in a town from July to December. Based on the pattern in the data, what is happening to the temperature?

About how long does Earth take to revolve around the Sun once?

The bar graph compares the average number of daylight hours recorded in a town during summer and during winter. What does the data show?

Seasons happen mainly because Earth is closer to the Sun in summer and farther away in winter.

When the Northern Hemisphere is tilted toward the Sun, it usually has _____.

Where you live in the United States, how is the noon Sun in the sky different in summer than in winter?

When the Northern Hemisphere is tilted away from the Sun, it usually has _____.

Spring and fall happen when a hemisphere is _____.

When are shadows usually shortest on a sunny day?

When are shadows usually longest on a sunny day?

On a sunny afternoon, the Sun is in the western sky. Which way does a tree's shadow point?

The bar graph shows the noon temperature recorded on the same day in two towns: Northport, in the Northern Hemisphere, and Southport, in the Southern Hemisphere. Based on the data, what season is Southport most likely having?

Why does more direct sunlight usually warm the ground more?

In many parts of the United States, summer days are usually ____ winter days.

Near the equator, day length changes less during the year than it does near the poles.

The Sun travels in a circle around Earth once each day, and that is what makes the Sun rise and set.

Every place on Earth gets exactly 12 hours of daylight on every day of the year.

Which classroom model best shows why day and night happen?

The line graph shows the number of daylight hours recorded once a month in a town from June to November. Based on the pattern in the data, what is happening to the daylight hours?

When the North Pole is tilted toward the Sun, which month is most likely in the Northern Hemisphere?

Which observation is good evidence that seasons are changing?

The bar graph shows the number of daylight hours recorded in a town during four different months. Based on the data, which month has the most daylight hours?