The sun is the central and largest body in the solar system.
The sun's warming of the Earth and the tilt of the Earth's axis has an important connection to the seasons.
Earth's motion is the basis for measuring time.
Objects in the sky move in regular and predictable patterns around the sun.
The sun, stars, and constellations appear to move in a predictable pattern across the sky.
Gravity is the force that keeps the planets in orbit around the sun, and without it, planets would continue in a straight path.
Seasons result from annual variations in the intensity of the sunlight and length of day due to the tilt of the axis of the Earth relative to the plane of its yearly orbit around the sun.
The sun is the central and largest body in our solar system. Earth is the third planet from the sun in a system that includes other planets and their moons, as well as smaller objects, such as asteroids and comets.
Gravity is the force that keeps most objects in the solar system in regular and predictable motion.