Rock Cycle Exercise
Overview
Match the correct rock from the garden with the statements or questions below.
Igneous Rocks
- The rock that might contain gold.
- The most common rock found in the earth’s continental crust.
- The heaviest rock in the garden.
- The rock with the bubble holes called “vesicles”.
- A rock that resulted from the formation of the Appalachian Mountains.
- The rocks that have no crystalline structure because they cooled too quickly for crystals to grow.
Sedimentary Rocks
- This rock was formed from rounded pebbles deposited in a stream bed.
- This rock is the oldest labeled rock in the garden.
- This rock is composed of silt and clay particles deposited in a low Energy environment.
- The rock that was once wind-blown sand in a desert region of the western United States.
- This rock has a sedimentary structure called “ripple marks” on its surface.
- A famous fort in Saint Augustine, Florida, was built from this rock type.
- These rocks were formed about 50-million years ago from the shells of marine animals such as snails, clams and corals.
- This rock was once a limestone, but the original mineral was dissolved and replaced with microscopic crystals of quartz.
- Which Rock was formed from the remains of an ancient coral reef?
Metamorphic Rocks
- What Conditions were present to cause both marble and quartzite to form?
- What mineral is quartzite made from?
- How did the quartzite boulder get its rounded shape?
- What are some uses for marble rock?
- What rock was metamorphosed to form marble?
- Besides marble, what other kinds of rock are present in the “marble” boulder?
- What does the word “augen” mean?
- When you look at the gneiss boulders in the garden, what minerals make up the dark bands?
- What minerals make up the lighter bands in the gneiss boulders?
- If the migmatite boulder was heated a little more, what type of rock might it have become upon cooling?
- The petrified wood near the main sign is now composed of quartz. Should this rock be classified as Igneous, sedimentary or metamorphic? Igneous, metamorphic or sedimentary? (circle one).
- The boulder on which the dinosaur footprints appear? Igneous, metamorphic or sedimentary? (circle one).
- All of the limestones in the garden are? Igneous, metamorphic or sedimentary? (circle one).
- The boulder that early Native Americans used to make tools and weapons? Igneous, metamorphic or sedimentary? (circle one).
- At present, there are four benches in the garden; two are sandstone, one is a conglomerate and one is granite. Which major rock type is not represented? Igneous, metamorphic or sedimentary? (circle one).