What is the approximate age of the Earth?

• 4.6 Billion Years

• 100 years

• 500 Million years

• 2.5 Trillion Years

Geologic Time is broken down into smaller parts called eons, ____, periods, and epochs.

• eras

• decades

• lightyears

• points

Tags

NGSS.MS-ESS1-4

What are the two types of dating scientists use for rocks?

• Absolute

• Relative

• Geologic

• Layer

Tags

NGSS.MS-ESS1-4

Place the examples in the correct category.

Groups:

(a) Relative Date

,

(b) Absolute Date

• My dog is 8 years old.

• My dog is older than my cat

• The Super Nintendo is older than the Switch

• Mr. Prior is older than Ms. Bass

• The Super Nintendo is 33 years old.

• Rock B is younger than Rock A

• This rock is 415 million years old.

• The bicycle is 3 years old.

Put the Letters in order from OLDEST to YOUNGEST.

(1 is the oldest, 4 is the youngest.)

• S

• T

• A

• N

Tags

NGSS.MS-ESS1-4

When particles of an element become unstable and release energy in the form of radiation, that element is said to be:

• Radioactive

• Relative

• On Fire

• Convection

Tags

NGSS.HS-PS1-8

Which of the logs have experienced 2 half-lifes?

Tags

NGSS.MS-ESS1-4

The half-life for a radioactive particle is 2,500 years. How old is an object that only has 50% of that particle remaining?

• 1,250 years

• 2,500 years

• 5,000 years

• 10,000 years

Tags

NGSS.HS-PS1-8

Match the property to the correct description

• Streak

• The color of the powder the mineral leaves behind. MIGHT BE different than mineral color!

• Color

• When a mineral breaks unevenly

• Fracture

• Description of how light reflects from a mineral's surface.

• Luster

• When a mineral breaks with a clean and even edge.

• Cleavage

• The actual color of the mineral. Very unreliable since many minerals can have the same color.

Which mineral can be scratched by feldspar but not scratched by fluorite?

• Quartz

• Calcite

• Feldspar

• Apatite