We are currently in our Land forms unit for science! Our main goal is for students to be able to give examples of how the surface of the Earth changes due to slow processes such as erosion and weathering, and rapid processes such as landslides, volcanic eruptions, and earthquakes.
We began our investigations on weathering by looking at the effects of: freezing on water, water on steel wool, gravel on sugar cubes, vinegar on pennies. These investigations helped us to see some examples of physical and chemical weathering. After Thanksgiving break, we will be using our stream tables (running water over land forms, to start) to investigate and better understand the changes that take place on earth's surface.
Key vocabulary to know:
weathering, physical weathering, chemical weathering, erosion, deposition