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5th Science Ch.4
5th Grade Science Ch. 4
| Question | Answer |
|---|---|
| Scientist who studies the earth? | geologist |
| Scientist who studies minerals? | mineralologists |
| People who explore caves? | spelunkers |
| Hardest substance of all? | diamond |
| The rarest gemstone? | ruby |
| Most useful metal? | iron |
| Only metal that stays liquid at room temperature? | mercury |
| Metal that is the best conductor of electricity? | silver |
| Animal and plant matter that has decayed in the soil? | humus |
| What is the molten rock inside the earth's mantle? | magma |
| An artificial rock that is very durable? | concrete |
| Which rock is used to make chalkboards? | slate |
| Material used as lead in pencils? | graphite |
| Rock that smells like mud when wet? | shale |
| Underground springs that shoot steam and extremely hot water into the air? | geyser |
| Which metal is radioactive? | uranium |
| What is oil called in its natural state? | petroleum |
| Which metal is lightweight, nonmagnetic, and rustprrof? | aluminum |
| All minerals form a special kind of soild called? | crystal |
| What are the hard minerals that are rare and beautiful, but have not yet been polished? | gemstones |
| What do you call plant and animal remains that have turned to stone? | petrified fossils |
| What are scientists who study fossils called? | paleontologists |
| When were most of the fossils probably formed? | flood of Noah |
| What kind of fossil is formed when mud buries a plant or animal suddenly and then the mud quickly hardens around it? | mold fossils |
| An igneous rock like volcanic glass? | obsidian |
| A sedimentary rock made of sand? | sandstone |
| A metamorphic rock that changed from limestone? | marble |
| A sedimentary rock made from bones and seashells? | limestone |
| An igneous rock that contains minerals of different colors? | granite |
| A metamorphic rock that was changed from shale? | slate |
| A sedimentary rock that smells like mud when it is wet? | shale |
| An igneous rock made from hardened lava foam? | pumice |
| An igneous rock? | basalt |
| Which type of weathering occurs when natural acids slowly eat into a rock,breaking it down? | chemical |
| Which type of weathering involves water and other natural elements breaking down rocks? | physical |
| The outermost layer of the earth? | crust |
| The middle layer of the earth? | mantle |
| The innermost region of the earth? | core |
| What is the inner core made of? | solid metals |
| What is the outer core made of? | liquid metals |
| What is the process by which new soil is formed as rocks crumble and break into smaller pieces? | weathering |
| Any trace of a plant or animal left in a rock is called a? | fossil |