Question

Fill in the blanks using the correct words

a. Anthracite is a metamorphic type of ________________ .

b. Heat, pressure, and ______________ turn igneous and sedimentary rocks into metamorphic rocks.

c. Fluids in rocks _________________________ up metamorphism.

d. ____________________ rocks recrystallize to form metamorphic rocks.

e. Minerals are just __________________ to recrystallize in low-grade metamorphic rocks.

f. Minerals in metamorphic rocks _____________________when heat and pressure is exerted on rocks.

g. Metamorphic rocks are rocks of ______________________ .

h. Rocks that _______________________ due to heat and pressure become igneous rocks.

i. Heat and pressure usually work to form new _________________________ rocks.

j. Graphite and ______________________ are both made of pure carbon.

Answer 1

a. Anthracite is a metamorphic type of coal.

b. Heat, pressure, and time turn igneous and sedimentary rocks into metamorphic rocks.

c. Fluids in rocks speed up metamorphism.

d. Sedimentary rocks recrystallize to form metamorphic rocks.

e. Minerals are just beginning to recrystallize in low-grade metamorphic rocks.

f. Minerals in metamorphic rocks recrystallize when heat and pressure is exerted on rocks.

g. Metamorphic rocks are rocks of change.

h. Rocks that melt due to heat and pressure become igneous rocks.

i. Heat and pressure usually work to form new metamorphic rocks.

j. Graphite and diamond are both made of pure carbon.