This layer of rock contains fossilized tracks from a dinosaur (Dilophosaurus). The black object is my cell phone for size reference. What kind of rock is it?
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Igneous
No. Igneous rocks formed from magma or lava. An igneous rock would not have fossilized dinosaur tracks. -
Sedimentary
Yes! Sedimentary rocks are deposited by wind, water, ice, or gravity, and they often contain fossils. The presence of fossils is one of the indications that a rock is probably sedimentary. -
Metamorphic
No. Metamorphic rocks have been changed by heat and pressure from a different kind of rock. The metamorphic process would have destroyed the tracks. -
It is not rock.
No. These dinosaur tracks are in rock.
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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).
| Bioclastics: Rocks With No Minerals | video |
| Evaporites | video, learnalong, checked |
| Igneous Rocks and Bubbles | video, free, learnalong, Updated |
| Sedimentary Rocks | video, learnalong |
| What is a Rock? | video, learnalong, checked |
| 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 |
| Homemade Fossil Dig | text page |
| Review Rocks-1 | practice |
| 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 |
Utah
UT.4.III.1.d Classify common rocks found in Utah as sedimentary (i.e., sandstone, conglomerate, shale), igneous (i.e., basalt, granite, obsidian, pumice) and metamorphic (i.e., marble, gneiss, schist).
| Evaporites | video, learnalong, checked |
| Igneous Rocks and Bubbles | video, free, learnalong, Updated |
| Sedimentary Rocks | video, learnalong |
| What is a Rock? | video, learnalong, checked |
| Light and Dark Minerals | text page, learnalong |
| Review Rocks-2 | practice |
| Review Rocks-3 | practice |
| Review Rocks-10 | practice |
| Review Rocks-10 | practice |
UT.8.III.1.c Categorize rock samples as sedimentary, metamorphic, or igneous.
| Igneous Rocks and Bubbles | video, free, learnalong, Updated |
| Sedimentary Rocks | video, learnalong |
| What is a Rock? | video, learnalong, checked |
| Light and Dark Minerals | text page, learnalong |
| Review Rocks-10 | practice |
| Review Rocks-10 | practice |
| Review Rocks-2 | practice |
| Review Rocks-3 | practice |
NGSS
MS-ESS2-1 Develop a model to describe the cycling of Earth’s materials and the flow of energy that drives this process.
| What is a Rock? | video, learnalong, checked |
| The Rock Cycle | video, learnalong |
| Bioclastics: Rocks With No Minerals | video |
| 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 |
| Light and Dark Minerals | text page, learnalong |
| Review Rocks-1 | practice |
| 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 |