These building stones are made of a rock called coquina. The rock is almost entirely made up of pieces of fossil sea shells. What kind of rock is it?
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Igneous
No. Igneous rocks formed from magma or lava. That would have melted and destroyed the fossil shells. This is not an igneous rock. -
Sedimentary
Yes! Sedimentary rocks are deposited by wind, water, ice, or gravity, and they often contain fossils. These bits of shell were deposited by water, so coquina is a Sedimentary rock. -
Metamorphic
No. Coquina has not been changed by heat and pressure from a different kind of rock, so it is not metamorphic. -
Coquina is not a rock.
No. Coquina is a naturally occurring solid that forms large layers in the Earth. Coquina is a rock.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.4.E.6.1 Identify the three categories of rocks: igneous, (formed from molten rock); sedimentary (pieces of other rocks and fossilized organisms); and metamorphic (formed from heat and pressure).
Evaporites | video, learnalong, checked |
Igneous Rocks and Bubbles | video, free, learnalong, Updated |
Sedimentary Rocks | video, learnalong |
What is a Rock? | video, learnalong, checked |
Bioclastics: Rocks With No Minerals | video |
Homemade Fossil Dig | text page |
Foliated and Unfoliated Rocks | text page, learnalong |
Identifying Igneous Rocks | text page, learnalong |
Intrusive and Extrusive Igneous Rocks | text page, learnalong |
Light and Dark Minerals | text page, learnalong |
Review Rocks-2 | practice |
Review Rocks-3 | practice |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-1 | practice |
SC.7.E.6.2 Identify the patterns within the rock cycle and relate them to surface events (weathering and erosion) and sub-surface events (plate tectonics and mountain building).
Evaporites | video, learnalong, checked |
What is a Rock? | video, learnalong, checked |
The Rock Cycle | video, learnalong |
Change: Fast and Slow | video |
Erosion | video, checked |
Continuous Change | video, checked |
Bioclastics: Rocks With No Minerals | video |
Weathering and Erosion | video, learnalong, checked |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-1 | practice |
Review Erosion-1 | practice |
Review Erosion-2 | practice |
Review Erosion-3 | practice |
Review Erosion-4 | practice |
Review Erosion-5 | practice |
Utah
UT.4.III.1.a Describe the differences between minerals and rocks.
What is a Mineral? | video, checked |
Identifying Minerals | video, learnalong |
What is a Rock? | video, learnalong, checked |
Bioclastics: Rocks With No Minerals | video |
Definition of a Mineral | video, checked |
Review Rocks-1 | practice |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
NGSS
4-ESS1-1 Identify evidence from patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
Evaporites | video, learnalong, checked |
Igneous Rocks and Bubbles | video, free, learnalong, Updated |
Sedimentary Rocks | video, learnalong |
Reading the Rocks: Law of Superposition | video |
Reading the Rocks: Law of Crosscutting | video |
What is a Rock? | video, learnalong, checked |
Reading the Rocks: The Present is the Key to the Past | video, ClosedCaptions |
Paleo Cookies | video |
Homemade Fossil Dig | text page |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Geologic Time-3 | practice |
Review Rocks-1 | practice |
Review Geologic Time-1 | practice |
Review Rocks-4 | practice |
Review Geologic Time-2 | practice |
Review Rocks-5 | practice |
MS-ESS2-1 Develop a model to describe the cycling of Earth’s materials and the flow of energy that drives this process.
Evaporites | video, learnalong, checked |
Definition of a Mineral | video, checked |
Igneous Rocks and Bubbles | video, free, learnalong, Updated |
What is a Mineral? | video, checked |
Identifying Minerals | video, learnalong |
Sedimentary Rocks | video, learnalong |
What is a Rock? | video, learnalong, checked |
The Rock Cycle | video, learnalong |
Bioclastics: Rocks With No Minerals | video |
Light and Dark Minerals | text page, learnalong |
Review Rocks-3 | practice |
Review Rocks-4 | practice |
Review Rocks-5 | practice |
Review Rocks-6 | practice |
Review Rocks-8 | practice |
Review Rocks-9 | practice |
Review Rocks-7 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-10 | practice |
Review Rocks-1 | practice |
Review Rocks-2 | practice |