Seasons Due to Earth's orbit around the sun constellations may only be visible during certain __ As the Earth revolves around the sun, the __ is moving but the stars in the sky are not. Earth moves through each section of the sky throughout the year, making only the constellations in that area __

## Step 1<br />The first blank in the sentence "Due to Earth's orbit around the sun constellations may only be visible during certain __" is referring to the time period during which we can see certain constellations. This is due to the Earth's orbit around the sun, which changes our perspective of the night sky throughout the year.<br /><br />## Step 2<br />The second blank in the sentence "As the Earth revolves around the sun, the __ is moving but the stars in the sky are not." is referring to what is moving as the Earth revolves around the sun. This is the Earth itself, which is moving in its orbit around the sun.<br /><br />## Step 3<br />The third blank in the sentence "Earth moves through each section of the sky throughout the year, making only the constellations in that area __" is referring to what happens to the constellations as the Earth moves through different sections of the sky. This is that the constellations become visible.