Detailed Instructions: Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.
Q: Look at the grains in the rock - their shapes and relationship to one another. if the grains are rounded or angular - go to 3 if the rock is made up interlocking crystalline grains - go to 6 Guidelines for Describing an Artwork When you describe an artwork, list only things that you can see. Report only facts. Don't worry about what the work mean, or whether you like it or not. The guidelines below can be used to describe works with or without recognizable shapes. You may not use all of the items listed in the guidelines for a particular work. Transparent (you can see through it) Translucent (light comes through it) Crystalline (has crystals in it) Magnetic (a paper clip is attracted to it) Color descriptors How would you describe a sedimentary rock? Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in three main ways-by the deposition of the weathered remains of other rocks (known as clastic sedimentary rocks); by the deposition of the results of biogenic activity; and by precipitation from solution. Describe how these three rock units sit relative to each other. Points to Consider. Imagine that you are a civil engineer. How could you use a topographic map to build a road, bridge, or tunnel through an area like the one shown in Figure above? Would you want your road to go up and down or remain as flat as possible? Such material, called detritus, consists of fragments of rocks and minerals. When the energy of the transporting current is not strong enough to carry these particles, the particles drop out in the process of sedimentation. This type of sedimentary deposition is referred to as clastic sedimentation. Limestones formed from this type of sediment are biological sedimentary rocks. Their biological origin is often revealed in the rock by the presence of fossils. Some limestones can form by direct precipitation of calcium carbonate from marine or fresh water. Limestones formed this way are chemical sedimentary rocks. A rock layer would need to have spaces between grains or cracks or hollow spaces to hold water. 2 Record the volume of water pumped and the time it took to pump it. Calculate the flow rates. 3 What differences do you see in the material of each rock layer? Describe particle size, particle shape, and the general shape and number of pore spaces in each rock. Sandstone has sand-sized particles that are relatively round with many pore spaces and good connection between the pore spaces. Shale has smaller, flatter particles than sandstone. Flowing water slows down when it reaches flatter land or flows into a body of still water. What do you think happens then? The water starts dropping the particles it was carrying. As the water slows, it drops the largest particles first. The smallest particles settle out last. Erosion and Deposition by Surface Water ALERT: NOTE THAT THE WORD 'CRYSTALLINE' HAS TWO DIFFERENT MEANINGS, DEPENDING UPON THE CONTEXT IN WHICH THE WORD IS USED: 1 In a mineralogical context, 'crystalline' means that the atoms within a substance are arranged in a regular, geometric fashion. All minerals are crystalline. Query: how do you describe shape of rock
A:
In the rock, their shapes and relationship to one another.