Unit 2 Review

What is the definition of half life?

• An abbreviation of the name of an element.

• An abbreviation that always contains letters from the element name.

• The amount of time it takes for half of a radioactive substance to decay.

• A combination of numbers and letters

Tags

NGSS.HS-PS1-8

What is matter?

• Any substance that has volume

• Any substance that has compounds

• Any substance that has mass

• Any substance that has density

Radioactive decay is also known as ...

• A full life

• A half life

• staying alive

• A power that the terminator has

Tags

NGSS.HS-PS1-8

What are minerals?

• They are small rocks

• The building blocks of rocks

• Crystals

• Decayed biological organisms

What is the definition of luster?

• The way that a mineral absorbs heat

• The price of a mineral

• The way that a mineral floats in water

• The way that a mineral reflects light

What are the two types of luster?

• Black and white

• Glassy and Metallic

• Metallic and Non-metallic

• Mirrors and Metals

What is mineral cleavage?

• The ability of a mineral to break along specific planes

• The ability of mineral to shatter

• The ability of a mineral to break into random pieces

• The inability of a mineral to break at all

What is mineral fracture?

• The ability of a mineral to break along specific planes

• The ability of mineral to shatter

• The ability of a mineral to break into random pieces (no cleavage)

• The inability of a mineral to break at all

What do igneous rocks form from?

• Heat and pressure

• magma and/or lava

• the lithification of weathered sediments

What do sedimentary rocks form from?

• Heat and pressure

• magma and/or lava

• the lithification of weathered sediments