Grade 7 Sedimentary Rocks Quiz with Answers

📚 Quick Study Guide

• 🌍 Sedimentary rocks are formed from sediments, which are small pieces of other rocks, minerals, and organic matter.
• 💧 Weathering and erosion break down existing rocks into sediments.
• 📦 Transportation of sediments occurs via wind, water, ice, or gravity.
• 🧱 Deposition is the process where sediments settle out of the transporting medium.
• ⏳ Compaction occurs as layers of sediment are buried and squeezed together.
• cementation is when dissolved minerals precipitate out of water and act like glue to bind the sediments together.
• 🌱 Examples of sedimentary rocks include sandstone, limestone, shale, and conglomerate.

🧪 Practice Quiz

1. What is the primary process involved in the formation of sedimentary rocks?
   1. A) Melting and solidification
   2. B) Weathering, erosion, and deposition
   3. C) Metamorphism
   4. D) Volcanic activity
2. Which of the following is NOT a common type of sediment?
   1. A) Sand
   2. B) Clay
   3. C) Lava
   4. D) Gravel
3. What process involves the squeezing of sediments due to the weight of overlying layers?
   1. A) Cementation
   2. B) Compaction
   3. C) Crystallization
   4. D) Weathering
4. Which sedimentary rock is formed primarily from the remains of marine organisms?
   1. A) Sandstone
   2. B) Shale
   3. C) Limestone
   4. D) Conglomerate
5. What is the process where dissolved minerals act as a 'glue' to bind sediments together?
   1. A) Compaction
   2. B) Cementation
   3. C) Erosion
   4. D) Deposition
6. Which of the following agents is NOT a common method of sediment transportation?
   1. A) Wind
   2. B) Water
   3. C) Ice
   4. D) Sunlight
7. Which sedimentary rock is characterized by its fine-grained texture and formation from compacted clay?
   1. A) Sandstone
   2. B) Shale
   3. C) Limestone
   4. D) Conglomerate