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Science 5
Chapter 4
| Question | Answer |
|---|---|
| The hardest of all substances | diamond |
| The rarest gemstone | ruby |
| Scientists who study minerals | mineralogists |
| The brown or black rocklike substance used for fuel | coal |
| Oil in its natural state is called crude oil or | petroleum |
| The preserved remains of plants or animals are called | fossils |
| Person who explores caves | spelunker |
| Used in plaster of Paris | gypsum |
| Easily broken into flat sheets | mica |
| "Mud Ball" filled with crystals inside | geode |
| Used in pencils | graphite |
| Used for arrow heads | flint |
| Best conductor of electricity | silver |
| Most useful metal | iron |
| Metal that is liquid at room temperature | mercury |
| Radioactive metal used as a source of nuclear power | uranium |
| Lightweight, silvery colored, rustproof metal | aluminum |
| Two types of weathering | chemical and physical |
| Three types of rocks | igneous, sedimentary, metamorphic |
| Examples of igneous rocks | obsidian, pumice, granite, basalt |
| Examples of sedimentary rocks | limestone, shale, sandstone |
| Examples of metamorphic rocks | marble, slate |
| Scientist who studies the earth | geologist |
| Name the four layers of the earth | crust, mantle, outer core, inner core |
| Is the crust solid, liquid, or both? | solid |
| Is the mantle solid, liquid, or both? | both |
| Is the outer core solid, liquid, or both? | liquid |
| Is the inner core solid, liquid, or both? | solid |
| Molten rock in the earth's mantle | magma |
| Decaying plant and animal material found in the soil | humus |
| Very durable artificial rock | concrete |
| This rock smells like mud when it is wet | shale |
| Rock used to make chalkboards | slate |
| All minerals form a special kind of solid called a | crystal |
| Rare, beautiful minerals that are very hard but have not yet been polished | gemstones |
| Underground spring that shoots streams of boiling water and steam up into the air from time to time | geyser |
| Plant and animal remains that have turned to stone are called | petrified fossils |
| Fossils that form when mud buries a plant or animal and them quickly hardens around it | mold fossils |
| Scientist who studies fossils | paleontologist |
| Most fossils were probably formed | During Noah's Flood |