Which of these conditions is most responsible for Earth having an environment that supports life?
Scientists know that Earth is constantly changing. They are familiar with the processes that are repeated in a monthly cycle. Which of these is a natural event that can be predicted to occur monthly?
Which best explains why the moon has phases?
Where do Earth's oceans bulge in response to the Moon's gravitational attraction to produce tides?
Which drawing best shows the orbit of the Moon?
What season is the Northern Hemisphere experiencing when the Southern Hemisphere is tilted directly toward the Sun?
Which of the following space technologies can astronauts live on for long periods of time?
In the Northern Hemisphere, June 21st has more hours of sunlight than any other day. However, June 21st has the fewest hours of sunlight in the Southern Hemisphere. Which best explains why the Northern Hemisphere receives more daylight than the Southern Hemisphere on the same day?
Which represents information that is gained as a result of space exploration?
Earth's rotation takes about
If you wanted to be able to look at the stars, the planets, and the moon more closely, what should you use?
Which event takes about one year to complete?
Earth, along with the other planets, revolves around the Sun. The planets revolve in a counterclockwise direction. The cause of the revolution is mostly due to which forces?
Which factor is the most influential in Earth's ability to support life?
Why are there high and low tides on Earth?
How does gravity support life on Earth?
There are four seasons in a year. Which reason is most responsible for the changing seasons on Earth?
The Earth's moon is___.
The diagram shows the Moon in various positions around Earth. At which position would the Moon appear to be full to people in the United States?
The alignment of the Sun, Earth, and Moon can produce shadows on the Earth or Moon resulting in an eclipse. Which diagram shows a Solar Eclipse?