Chapter 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The hardest of all substances | diamond
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| The rarest gemstone | ruby
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| Scientists who study minerals | mineralogists
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| The brown or black rocklike substance used for fuel | coal
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| Oil in its natural state is called crude oil or | petroleum
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| The preserved remains of plants or animals are called | fossils
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| Person who explores caves | spelunker
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| Used in plaster of Paris | gypsum
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| Easily broken into flat sheets | mica
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| "Mud Ball" filled with crystals inside | geode
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| Used in pencils | graphite
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| Used for arrow heads | flint
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| Best conductor of electricity | silver
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| Most useful metal | iron
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| Metal that is liquid at room temperature | mercury
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| Radioactive metal used as a source of nuclear power | uranium
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| Lightweight, silvery colored, rustproof metal | aluminum
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| Two types of weathering | chemical and physical
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| Three types of rocks | igneous, sedimentary, metamorphic
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| Examples of igneous rocks | obsidian, pumice, granite, basalt
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| Examples of sedimentary rocks | limestone, shale, sandstone
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| Examples of metamorphic rocks | marble, slate
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| Scientist who studies the earth | geologist
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| Name the four layers of the earth | crust, mantle, outer core, inner core
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| Is the crust solid, liquid, or both? | solid
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| Is the mantle solid, liquid, or both? | both
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| Is the outer core solid, liquid, or both? | liquid
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| Is the inner core solid, liquid, or both? | solid
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| Molten rock in the earth's mantle | magma
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| Decaying plant and animal material found in the soil | humus
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| Very durable artificial rock | concrete
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| This rock smells like mud when it is wet | shale
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| Rock used to make chalkboards | slate
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| All minerals form a special kind of solid called a | crystal
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| Rare, beautiful minerals that are very hard but have not yet been polished | gemstones
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| Underground spring that shoots streams of boiling water and steam up into the air from time to time | geyser
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| Plant and animal remains that have turned to stone are called | petrified fossils
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| Fossils that form when mud buries a plant or animal and them quickly hardens around it | mold fossils
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| Scientist who studies fossils | paleontologist
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| Most fossils were probably formed | During Noah's Flood
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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