<p>QUIZ 7 – Review Guide</p><p>Know the following terms and concepts. Be prepared to give examples where needed.</p><p>1. Rock layers found in the Grand Canyon provide evidence that? 2. A time scale that shows how many years ago different events happened is called a? 3. Why are index fossils more useful to geologists than other fossils? 4. What makes a good index fossil? 5. There is a layer of sandstone directly above a layer of granite. Geologists have determined that the granite formed about 100 million years ago. What can you say about the sandstone? 6. List the following organisms in the fossil record from earliest to latest: reptiles, mammals, jellyfish, dinosaurs, insects, grass, trilobites, flowering plants, bees. 7. ESSAY: What are index fossils and why are they important to geologists?</p><p>QUIZ 7 – Review Guide</p><p>Know the following terms and concepts. Be prepared to give examples where needed.</p><p>1. Rock layers found in the Grand Canyon provide evidence that? 2. A time scale that shows how many years ago different events happened is called a? 3. Why are index fossils more useful to geologists than other fossils? 4. What makes a good index fossil? 5. There is a layer of sandstone directly above a layer of granite. Geologists have determined that the granite formed about 100 million years ago. What can you say about the sandstone? 6. List the following organisms in the fossil record from earliest to latest: reptiles, mammals, jellyfish, dinosaurs, insects, grass, trilobites, flowering plants, bees. 7. ESSAY: What are index fossils and why are they important to geologists?</p><p>QUIZ 7 – Review Guide</p><p>Know the following terms and concepts. Be prepared to give examples where needed.</p><p>1. Rock layers found in the Grand Canyon provide evidence that? 2. A time scale that shows how many years ago different events happened is called a? 3. Why are index fossils more useful to geologists than other fossils? 4. What makes a good index fossil? 5. There is a layer of sandstone directly above a layer of granite. Geologists have determined that the granite formed about 100 million years ago. What can you say about the sandstone? 6. List the following organisms in the fossil record from earliest to latest: reptiles, mammals, jellyfish, dinosaurs, insects, grass, trilobites, flowering plants, bees. 7. ESSAY: What are index fossils and why are they important to geologists?</p><p>QUIZ 7 – Review Guide</p><p>Know the following terms and concepts. Be prepared to give examples where needed.</p><p>1. Rock layers found in the Grand Canyon provide evidence that? 2. A time scale that shows how many years ago different events happened is called a? 3. Why are index fossils more useful to geologists than other fossils? 4. What makes a good index fossil? 5. There is a layer of sandstone directly above a layer of granite. Geologists have determined that the granite formed about 100 million years ago. What can you say about the sandstone? 6. List the following organisms in the fossil record from earliest to latest: reptiles, mammals, jellyfish, dinosaurs, insects, grass, trilobites, flowering plants, bees. 7. ESSAY: What are index fossils and why are they important to geologists?</p>