Limestone forms when the shells of sea creatures are cemented together
Sedimentary rock
What type of rock
Obsidian forms when lava cools quickly at Earth's surface
What is Igneous
Conglomerate forms when small pebbles are compacted and cemented together
Sedimentary
What acts as glue to cement sediment together into rock?
Melted rock
Minerals dissolved in water
Smaller pieces of sediment
Minerals dissolved in water
Minerals like quartz or calcite dissolve in water and then settle between the pieces of sediment. Over time, they harden and act like glue, sticking the tiny pieces together to form solid rock.
Pumice forms when lava with water vapour in it cools, leaving air bubbles in the rock
Igneous
Any type of rock can turn into an igneous rock
True or False
True
Sandstone forms when grains of sand are compacted and cemented together
Sedimentary
Marble forms when limestone is exposed to heat and pressure- what type of rock?
Metamorphic
Rocks constantly change between three types of rocks in a process called: weathering/erosion, the rock cycle, or geology
Gneiss forms when heat and pressure change in the crystal shapes in granite
What is the difference between magma and lava?
Magma is underground
Lava is on the earth's surface
Weathering is caused by..
Moving water
Plants and animal activity
Both plants/animals and water
Both plants/animals and water
when a metamorphic rocks form ,the heat is not hot enough to:
Change the appearance
Change the rock's crystal shapes
Melt the rock
Melt the rock
When metamorphic rocks form, the heat and pressure are intense but not hot enough to melt the rock. Instead, they cause changes in the rock's texture and crystal structure without turning it into a liquid.
What are rocks?
Living organisms
Minerals stuck together
Minerals stuck together
Granite forms when magma cools slowly underground