Rocks and Weathering W Richards The Weald School
What are rocks? Rocks can be found here… …and here… …and here… …and here Rocks are made from a combination of minerals and can be hard or soft depending on how the minerals are arranged.
Erosion experiments… Describe what you did here… Experiment 1: Shaking rocks in a bottle In this experiment we… This showed what happened when rocks travel with a stream. Experiment 2: Acid on limestone In this experiment we… This showed the damage that can be caused by acid rain. Experiment 3: Heating and cooling a rock In this experiment we… This showed the damage that can be done when a rock is heated and cooled, like during the day and night.
Rock fragments When rocks are broken off they can form “scree slopes” Rock shape up here Rock shape down here When rocks are transported by a river they are eroded: “Sediment”
Weathering by ice “Onion skin” weathering
Erosion and weathering… EROSION is when rocks are gradually worn down. WEATHERING is when rocks are broken up into smaller ones. The ultimate result of both of these processes is SOIL.