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Hassan is trying to figure out if Rocklandia has more igneous, sedimentary, or metamorphic rocks. Help him make a bar graph to solve this problem.
Key information:
Key information:
Igneous rocks form when hot liquids (like magma) from deep below the Earth's surface rise toward the surface, cool, and solidify.
Sedimentary rocks form when small pieces of the Earth ("sediment") that have been worn away by wind and water accumulate at the bottom of rivers and oceans and are eventually compacted into rock.
Metamorphic rocks form when igneous or sedimentary rocks are changed by heat and pressure.
Key steps:
Key steps:
Collect all the rock samples from the dig sites
smooth basalt
pāhoehoe
andesite
rhyolite
obsidian
tuff
pumice
pegmatite
granite
diorite
kimberlite
copper porphyry
coal
red sandstone
yellow sandstone
conglomerate
shale
columnar basalt
slate
marble
lapis lazuli
gneiss
Sort them into the three types of rock and stack them on the correct coloured square.
When you've finished, look at your graph. What do your results tell you about the rocks in Rocklandia?
Hint:
Hint:
Think about where you collected your samples. The site should give you an idea of how each rock was formed.
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