html5-img
1 / 5

Types of Rocks

Types of Rocks. There are three main types of rocks: Igneous - formed when molten rock cools . Sedimentary – formed by the “cementing together” of small grains of sediment. Metamorphic – rocks changed by the effect of heat and pressure. volcano. magma. Igneous Rocks.

lloyd
Télécharger la présentation

Types of Rocks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Types of Rocks • There are three main types of rocks: • Igneous - formed when molten rock cools. • Sedimentary – formed by the “cementing together” of small grains of sediment. • Metamorphic – rocks changed by the effect of heat and pressure.

  2. volcano magma Igneous Rocks • These are rocks formed by the cooling of molten rock (magma.) Magma cools and solidifies forming igneous rocks

  3. Fragments washed to the sea Rocks are broken up by the action of weather sea Sedimentary rocks Getting older Sedimentary Rocks • Sedimentary Rocks are rocks formed when particles of sediment build up and are “cemented together” by the effect of pressure and minerals.

  4. Pressure from surface rocks metamorphic rock forming here Magma heat Metamorphic Rocks • Metamorphic rocks are formed by the effect of heat and pressure on existing rocks. • This can greatly affect the hardness, texture or layer patterns of the rocks.

  5. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

More Related