Earth Science Word Scramble
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| Question | Answer |
| This igneous texture is characterized by two distinctively different crystal sizes. | porphyritic |
| Isotopes of the same element have the same mass number. | False |
| Which pair of minerals is most common in detrital sedimentary rocks? | clay and quartz |
| Which of the following is NOT one of the eight most common elements in Earth's crust? | carbon |
| What element is the most abundant in the Earth's crust by weight? | oxygen |
| Intrusive rocks | none of these |
| As the rate of cooling increases, the size of the crystals that form | decreases |
| Olivine and quartz are commonly found together in the same rock. | False |
| Evaporites have a biochemical origin. | false |
| The strong tendency of certain minerals to break along smooth, parallel planes is known as | cleavage |
| Quartz is quite resistant to weathering and is an important component of sands in riverbeds and on beaches. | true |
| All atoms of the same element have the same atomic number. | true |
| Glassy igneous rocks form when magma cools so slowly that mineral crystals cannot grow. | false |
| Sedimentary rocks | all of these |
| The most abundant chemical sedimentary rock is | limestone |
| Which group of minerals are the most abundant in the Earth's crust? | silicates |
| One magma can produce several different igneous rocks having different mineral compositions | True |
| Which of the following best defines a mineral and a rock? | in a mineral the constituent atoms are bonded in a regular, repetitive, internal structure; a rock is a lithified or consolidated aggregate of different mineral grains |
| The primary agent of contact metamorphism is | heat |
| Which of the following minerals is a silicate? | feldspar |
| Most limestone has a biochemical origin. | true |
| The most unreliable (variable) diagnostic property of minerals such as quartz is | color |
| Detrital sedimentary rocks are classified (named) primarily on the basis of | particle size |
| Atoms of the same element, zinc for example, have the same number of | protons in the nucleus |
| Select the coarse-grained rock which is composed mainly of quartz and potassium feldspar from the list below. | granite |
| Which of these factors influence the type and rate of weathering? | all of these |
| Metamorphism can affect only sedimentary rocks. | false |
| All atoms of the same element have the same atomic number. | true |
| Rocks are aggregates of one or more minerals. | true |
| Metamorphism may result from | all of these |
| The resistance of a mineral to abrasion is known as | hardness |
| All silicate minerals contain which two elements? | silicon, oxygen |
| In the silicon-oxygen tetrahedron there are more silicon atoms than oxygen atoms. | false |
| Which the following denotes the positively charged particles in an atom's nucleus? | protons |
| Electrically neutral atoms have equal numbers of electrons and protons. | true |
| Most minerals have a higher specific gravity than water. | true |
| Metamorphism is commonly associated with mountain building. | true |
| An atom's mass number is 13 and its atomic number is 6. How many neutrons are in its nucleus? | 7 |
| Which one of the following is NOT true about mechanical weathering? | does not affect metamorphic rocks |
| All minerals exhibit cleavage. | false |
| A mineral can be composed entirely of one element. | true |
| Atoms that have an electrical charge due to a gain or loss of electrons are called | ions |
| is a strong, parallel alignment of different mineral bands in a metamorphic rock. | Foliation |
| Which one of the following is not true for minerals? | they can be a liquid, solid, or glass |
| Which one of the following is an igneous rock? | rhyolite |
| Which of the following is correct for isotopes of the same element? | the atoms have different numbers of neutrons and the same number of protons |
| Detrital sediments would predominate in all of the following environments except | salt flat |
| Which of the following best describes bedded gypsum and rock salt? | evaporites; chemical, sedimentary rocks |
| The ion at the center of a silicon-oxygen tetrahedron is surrounded by | 4 oxygen ions |
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remharri
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