The dominant type of rocks will be sedimentary rocks, such as limestone or sandstone.
Sedimentary rocks will be more common than igneous or metamorphic rocks.
This is because Texas has a diverse geological history with abundant sedimentary deposits, including ancient seas and river systems.
The streak in the rock samples will vary depending on the mineral composition, ranging from white or colorless to various shades.
The rocks will generally be hard, considering that sedimentary rocks in Texas often consist of compacted and cemented sediment particles.
Calcium carbonate may be present in some of the rocks, particularly in limestone formations, due to the prevalence of marine deposits and fossilized seashells in the region.
How to state hypothesis
Texas has many different kinds of rocks, but the most common types are sedimentary rocks. This happened because a long time ago, there were lots of rocks and dirt left behind by oceans and rivers.
In Texas, there are rocks like limestone, sandstone, shale, and conglomerate that were formed from sediments. These rocks are made when layers of sediment pile up and then get squished and stuck together over a long time.
Sedimentary rocks are found more often in Texas than igneous or metamorphic rocks. This is because Texas has a lot of land that was formed from rocks and dirt over a long time.
There are big areas where sediment has built up, like the Gulf Coast, Permian, and East Texas. These basins were made over millions of years by layers of dirt building up, and now there are lots of rock layers across the state.