4th Grade Science
Study Guide Chapter 9: Astronomy
Order of planets from the sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto
(My Very Earnest Mother Just Served Us Nine Pizzas)
This is the "normal" order. Note that Neptune and Pluto are reversed now.
Solar system the part of our galaxy with the sun and the nine planets
Universe all things which God created
Moon the satellite of the earth that revolves around it once every 29 ½ days and shines by reflected sunlight (our months are based on the moons revolution around the earth)
Earth the only planet with water
Mars the red planet
Saturn one planet with rings
Constellations star pictures
One revolution this movement of the earth gives us a year (365 Ό days)
One rotation this movement of the earth gives us a day (24 hours)
Seven day week determined by the Genesis account of creation
Seasons are possible due to the tilt of the earth on its axis
Zodiac the name of the 12 important constellations that encircle the earth
Astronomy the true science of the stars and other heavenly bodies
Milky Way the name of the galaxy we live in
Days of creation
Facts to know