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HowBigisBig? IntegratedScience2 Name: Date: Pd: A billion is 109 or 1,000,000,000. And it is a BIG number! There are many cases in which numbers like a billion are used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers times and distances in the billions—and more, we want you to take a minute to just think about how big our universe is. Using the numbers below we will start to think about how big, and how old, the universe really is. It is important to have some sense of large numbers as they are used in all fields of science. Select items from Table 1 to match into Table 2. Table 1: How Big Is….? Distance from the Sun to Saturn Length of a Classroom Distance from the Sun to the Earth Width of a doorway Diameter of Jupiter Diameter of the Milky Way Galaxy Depth of the Grand Canyon Distance from the Earth to Moon Diameter of a Softball Diameter of the Sun Length of California Deepest Depth of the Pacific Ocean Width of a Light Switch Lever Distance to the Nearest Star Diameter of the School Diameter of the Earth Appx.SizeInWords MatchingObject 10cm 1m 10m 100m 1km 10km 1,000km OneThousandkm LengthofCalifornia 10,000km 100,000km 1,000,000km 10,000,000km 100,000,000km 1,000,000,000km 10,000,000,000,000km 1,000,000,000,000,000km Table2: ApproximateSize 1cm How Big are THESE? Applying the ideas of millions, billions, and beyond, see if you can attach some numbers to the events below. How big do you think they are? Time: First Hominids Appeared = ______________________________ Age of the Universe = ______________________________ Age of Earth = ______________________________ First Cells (Life) Appeared = ______________________________ Years that Single Celled Organisms Were the Only Life on Earth = ______________________________ Distance: Distance to the Moon = ______________________________ Distance to the Sun = ______________________________ Distance to the Nearest Star, Proxima Centauri = ______________________________ Distance to Mars = ______________________________ Distance to the Nearest Galaxy, Andromeda = ______________________________ Numbers: Number of Species of Animals on Earth = ______________________________ Number of Stars in the Milky Way Galaxy = ______________________________ Number of Carbon-14 Atoms in the Average Newborn Baby = ______________________________ Number of Galaxies in the Observable Universe = ______________________________