Vocabulary
astronomer, galaxy, solar system, stars, revolution, year, constellations, telescope, The Big Dipper, Ursa Major, atmosphere, shadow, east, west, tides, moon's gravity, orbit, month, crescent, tidal lock, phase, Virgo, Sagittarius, Scorpio, Libra, Leo, Cancer, Gemini, Taurus, Aries, Pisces, Aquarius, Capricorn, moon, Earth, orbit, waning, waxing, crescent, gibbous, quarter moon, tides, gravitational pull, spring tide, neap tide, lunar phases, high tide, low tide, gravity, tidal force, axis, atmosphere, rotation, revolution, model, waxing, waning, gibbous, crescent, phases, new moon, natural resources, man-made resources, rocks, Earth, size, texture, smooth, rough, color, properties, saltwater, freshwater, soil