How do sedimentary rocks form?

• heat and pressure creates a new rock

• melted rock cools and hardens

• pieces of rock and other materials squeeze together

What is a mineral?

• magma that escapes through an opening in the Earth's surface

• small, broken up pieces of rock

• the remains of an animal that lived in the past

• a solid, nonliving material found in nature

What property of minerals is measured by scratching the surface of the mineral?

• magnestism

• hardness

• color

• luster

Sally is trying to identify a mineral. She notes that the mineral can easily break into flat sections. What property has she observed?

• hardness

• streak

• luster

• cleavage

Sam finds a rock that contains a fossil. Which type of rock does Sam most likely have?

• igneous

• metamorphic

• sedimentary

• mineral

Tags

NGSS.MS-LS4-1

Rocks are mostly made of

• minerals

• lava

• fossils

• dirt

This rock was found near the mouth of a volcano. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

Tags

NGSS.MS-ESS2-1

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

The process when rocks break into smaller pieces due to exposure to natural elements is called

• erosion
• weathering
• sediments

Tags

NGSS.MS-ESS2-2

What property describes minerals as shiny, pearly, glassy, or dull?

• Luster
• Color
• Hardness
• Special Properties