4th Grade - Patterns in the Sky (Constellations, Rotate/Revolve)

One day on Earth is 24 hours. Some planets have shorter days. Other planets have longer days. What determines the length of a planet’s day?

• tilt

• moons

• rotation

• revolution

Which statement about star patterns is true?

• Star patterns are visible all year.

• Star patterns are only visible in the Southern Hemisphere.

• Star patterns are only visible during certain seasons.

• Star patterns are only visible during the day.

Why do the sun, moon, and stars appear to move across the sky?

• They all revolve around Earth.

• Earth rotates around the moon.

• The moon and stars revolve around Earth.

• Earth rotates on its axis and revolves around the sun.

Isabella looks at the patterns of stars in the night sky from her home in Florida. She observes the stars each night in December. She draws the star patterns that she sees each hour for five hours each night. What does Isabella most likely observe about the star pattern Orion?

• Orion changes its shape and forms a new pattern.

• The pattern of Orion appears to move across the sky

• The pattern of Orion stays in the same part of the sky.

• The stars in Orion change positions with the pattern.

Some constellations are visible from different places on Earth only during part of the year. Why are certain constellations not visible everywhere on Earth all year long?

• sun's rotation

• Earth's rotation

• sun's revolution

• Earth's revolution