These simple science experiments demonstrate how sedimentary layers compress under pressure. The Mississippi, Nile, Amazon are just three great rivers that carry large amounts of sediment from the continents to the oceans. At the mouth of the rivers the largest particles settle out. Further offshore silt drifts to the ocean floor. After each rainstorm or floor a new layer of silt settles to the ocean floor.
NASA estimates that 500 million tons of sediment are deposited on the ocean floor each year by the Mississippi River. The bottom layers have tremendous pressure exerted on them not only by the ocean water but also by the individual layers above. As the pressure increases the water is forced out and sedimentary rock forms. In this experiment you will see the effects of pressure on dark and light slices of bread.
Cool Science Experiments, Funny Bones In these fun experiments find out how you can create "funny bones" that can bend.
Easy Science Experiments, Pumice & Obsidian Find out the difference between pumice and obsidian and why one will float and the other will sink like a rock.
Volcano Science Experiment, Cinder Cones Have you ever wondered how volcanoes get their shape? Find out about cinder cones in this fun activity.
Gravity Experiments, Balancing Acts Learn how to balance a potato, fork and pencil on the edge of a table.
Elementary Science Experiment, Earthquake Waves Create your own wave box that makes paper clips jump when earthquake waves pass through them.
Simple Science Experiments, Pressing Layers In these simple science experiments discover how bread slices can turn into sedimentary layers in this fun experiment.
Earth Science The links on this page include information on the Earth, the Rock Cycle, Volcanoes, experiments, activities and much more.
Check out Myrna Martin's award winning textbooks, e-books, videos and rock sets. The Ring of Fire Science Bookstore covers a wide range of earth science topics. Click here to browse.