Summer solstice is the first day of summer each year and it occurs around June 21st in the Northern Hemisphere(December 21st in the Southern Hemisphere). The winter solstice is the first day of winter and occurs around December 21 in the Northern Hemisphere. (June 21 in the Southern Hemisphere). Starting at winter solstice to summer […]
Density
You can easily describe and/or calculate the density of substances if you understand that density is nothing more than a ratio comparing two quantities. The things being counted may vary but all densities are ratios that compare the quantity of a substance in a specific volume (or area). Densities can be demonstrated using paperclips and […]
Wind Direction
Wind is moving air. Gravity is a force directed perpendicular to Earth’s surface. In other words, gravity pulls things straight down (vertically) toward Earth’s surface. The mass of an object directly affects the amount of gravity acting on it. The greater the mass the greater is the force of gravity. For wind to move an […]
Sedimentary Rock:Cementing
Sedimentary rock are layers of sediments cemented together.The basic steps of this process are: Deposition of sediment. The transfer of sediments (soil particles) from one place to another causing layers after layer to form. Compaction of sediment. The squeezing together of sediments. Cementing sediment. The gluing together of sediments. During compaction the air and water […]
Sedimentary Rock
An easy way to model the formation of sedimentary rock by the processes of deposition and compaction.
Rain Drop Formation
How do raindrop form? One way that rain drops form is called accretion. This is the process by which cloud droplets (very tiny drops of liquid water forming clouds) combine forming larger drops. This happen when the drops bump into each as well as when they get very near each other. Water molecules have an […]
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