Today we carried out an experiment to investigate what happens to chalk when it is exposed to different types of weathering. This investigated represented the three different types of weathering: biological, chemical and physical. We set up our experiment by pouring water (physical weathering) into a cup and vinegar (chemical weathering) into the other. We put the chalk into the cups and set a timer for 5 minutes. We observed what happened to the chalk during the 5 minutes. We then used a piece of sandpaper to lightly rub the piece of chalk for 30 seconds. We concluded that the chalk in the vinegar changed the most because after the 5 minutes in the vinegar it had holes and slight cracks in it. The chalk in the water didn’t have any changes after the 5 minutes.
