Objective Students will have an understanding of how rocks change due to weathering.
What are some ways that rocks can break down? If you said water, wind, and other ways you correct! What type of rock bits can rocks break into? If you said other rocks, pebbles, sand, silt, and clay your correct!
How Rocks Change Rocks can change by Today you will learn more about the other ways rocks can show weathering.
Types of Weathering You already know rocks breakdown by wind and water. Rocks can also break down by gravity and living things.
Gravity One way weathering can happen is by avalanches. A mass of snow, ice, and rocks falling rapidly down a mountainside. Rocks fall with the snow and land on bottom.
Gravity Another way is by landslides. Landslides take place when dirt, pebbles, rocks and boulders slide down a slope together. Sometimes these landslides are small, and hardly noticeable. Other times however, they can be big, involving the entire side of a mountain.
Living Things Plant Growth : Roots of trees and other plants grow in the cracks of rocks and pry them apart. Perhaps you have seen this on sidewalks?
Living Things Animal Actions : Animals dig in the soil and loosen and break apart rocks. A large number of animals make tunnels through hard rock and under the ground.
Living Things Animal Actions : Even earthworms make tunnels in the ground which leads to breakdown of stones and rocks over a period of time. Surface rocks also get crushed when animals tread/walk on them
WWhat are the 4 types of weathering wwind wwater ggravity lliving things AA large rock can be broken into smaller pieces. What are the smaller bits. rrock ppebble ssand ssilt cclay
Soap Rocks Experiment Draw the picture of the soap bar on a piece of paper. The bar of soap represents a rock and the water represents the ocean waves. before weathering after weathering Write a hypothesis about what will happen to the rock. hypothesis
Soap Rocks Experiment before weathering after weathering Watch as the waves move the rock. What is happening to the rock? If you said weathering by water you are correct. The soap is being carried by the water and hitting other rock causing the rock to change its form. If you said erosion you are also correct. The water is moving the rock around and around. The rock did not stay in the same place the whole time. hypothesis Now what does our soap rock look like? Draw a picture of the soap rock after it is taken out of the tub. What was the out come of the experiment? Write your results below your drawing. results
Video Rock Cycle Video https://www.youtube.com/watch ?v=D7WFeh30UpY https://www.youtube.com/watch ?v=D7WFeh30UpY Magic School Bus Rocks and Rolls https://www.youtube.com/watch ?v=YrC15uySkVE https://www.youtube.com/watch ?v=YrC15uySkVE