• review that Earth rotates on its axis one time every 24 hours. • review that Earth revolves (orbits) around the sun in one year. • review how the appearance of the moon changes each night. • review how patterns of stars (constellations) appear to shift across the sky nightly. • review that different star patterns can be seen in different seasons. • distinguish among the following objects in the Solar System: sun, planets, moons, asteroids, and comets. • identify the position and sequential order of objects within the Solar System in relation to the sun using models (e.g., Earth, other planets, inner/outer planets, asteroid belt, stars, moons). • identify major common characteristics of all planets (tilt on an axis, mass, gravity, revolving/orbiting around a star, rotation, presence of an atmosphere). • compare the similarities among and differences between the characteristics of inner and outer planets (composition, size, atmospheres, relative temperature, moons, rings, relative length of year based on distance from the sun).
Students will: • review that the sun is a star that emits energy in the form of light and heat. • review that stars are made of gases. • review how stars can be different: brightness, size, temperature/color. • review how a star’s appearance (brightness and size) is affected by its distance from Earth. • describe the composition of a galaxy (gas, dust, and many stars, including any objects orbiting the stars). • identify our home galaxy as the Milky Way