Rocks

Noah was asked to describe the texture of a rock that he found to help identify it. Which statement best describes Noah's response?

• My rock has one shiny side.

• My rock is able to scratch talc.

• My rock is smooth.

Lewis was asked to describe the luster of a rock from the playground. Which statement best describes Lewis' response?

• My rock is dull.

• My rock is smooth.

• My rock is able to scratch talc.

Tags

NGSS.MS-PS1-2

In order to classify rocks, geologists can use what three things?

• Luster, shine, and texture

• Luster, texture, color

• Color, shine, texture

A geologist was trying to classify a rock based on its characteristics. The geologist began to scratch the rock using other minerals and his fingernail. Which statement is true?

• Scratching a mineral helps determine its color.

• Scratching a mineral helps determine its luster.

• Scratching a mineral helps determine its hardness.

• Scratching a mineral helps determine its texture.

What is the hardest mineral on the Mohs Scale?

• Diamond

• Talc

• Quartz

• Topaz

The higher number minerals on the Mohs Scale can scratch lower number minerals.

• True

• False

What is the softest mineral on the Mohs Scale?

• Talc

• Topaz

• Diamond

• Quartz

Jacob is studying minerals. Which will NOT help him name the mineral?

• Size

• Hardness

• Color

• Luster

Tommy found a mineral and wants to know what kind it is. What is one thing Tommy can check to help figure it out?

• Hardness

• Weight

• Temperature

• Length

What is a geologist?

• Someone who studies trees

• Someone who studies the past life of dinosaurs

• Someone that works at a grocery store

• Someone that studies rocks and minerals