1. The time from Sun up to Sun down when the Earth has light. 2. a large, round object that moves around the Sun or another star.
Day is (1) the time from Sun up to Sun down when the Earth has light.
1. the time from Sun down to Sun up when the Earth is dark. 2. A big ball of dirt and rock that moves around the Earth.
The Moon is (2) A big ball of dirt and rock that moves around the Earth.
1. the planet that people live on. 2. to move around a star or planet.
Earth is (1) the planet that people live on.
1. The Sun and the group of objects that move around it. 2. the time from Sun down to Sun up when the Earth is dark.
Night is (2) the time from Sun down to Sun up when the Earth is dark.
1. to move around a star or planet. 2. A big ball of dirt and rock that moves around the Earth.
Orbit is (1) to move around a star or planet.
1. the area past Earth's atmosphere. 2. a large, round object that moves around the Sun or another star.
A planet is (2) a large, round object that moves around the Sun or another star.
1. The Sun and the group of objects that move around it. 2. the star at the center of our solar system.
The Solar System is (1) The Sun and the group of objects that move around it.
1. an object in space that makes its own heat and light. 2. the area past Earth's atmosphere.
Space is (2) the area past Earth's atmosphere.
1. The time from Sun up to Sun down when the Earth has light. 2. an object in space that makes its own heat and light.
A star is (2) an object in space that makes its own heat and light.
1. the star at the center of our solar system. 2. the planet that people live on.
The Sun is (1) the star at the center of our solar system.
1. day 2. moon 3. Star
(1) DAY.
1. day 2. moon 3. Night.
(2) MOON
1. Star 2. Solar System. 3. Earth
(3) EARTH
1. Night. 2. Solar System. 3. Space.
(1) NIGHT
1. planet. 2. orbit. 3. day
(2) ORBIT
1. orbit. 2. Sun. 3. planet
(3) PLANET
