Types of Rocks and Their Formation

The video tutorial explains how scientists classify rocks into three main types: sedimentary, metamorphic, and igneous. Sedimentary rocks form from layers of material like minerals and organic matter. Metamorphic rocks originate from existing rocks that undergo heat and pressure, leading to transformation. Igneous rocks form from cooled lava or magma. Each type of rock is illustrated with examples such as limestone, marble, and basalt.

What are the three main types of rocks classified by scientists?

• Limestone, Sandstone, Slate

• Granite, Marble, Basalt

• Sedimentary, Metamorphic, Igneous

• Magma, Lava, Strata

How are sedimentary rocks primarily formed?

• By cooling of magma

• By accumulation and compression of particles

• Through heat and pressure

• By volcanic eruptions

Which of the following is an example of a sedimentary rock?

• Marble

• Granite

• Limestone

• Slate

What process transforms existing rocks into metamorphic rocks?

• Chemical weathering

• Erosion and sedimentation

• Heat and pressure

• Cooling of lava

Which rock is an example of a metamorphic rock?

• Sandstone

• Slate

• Basalt

• Granite

What is the primary source of igneous rocks?

• Magma cooling

• Chemical reactions

• Sediment accumulation

• Heat and pressure

Which of the following is an igneous rock?

• Marble

• Basalt

• Slate

• Limestone