Earth Science Rocks

Earth Science Review Site

Thursday, April 20, 2006

Answers to Review Regents Review Sheets 1-3

Here are the answers to Regents Review Sheets 1-3


Regents Review Sheet #1

1. Herkimer Diamond have a hardness of 7, diamonds has a hardness of 10
Herkimer Diamonds are made of SiO2 , Diamond are made or carbon.
Herimer Diamonds will fracture, Diamonds will cleave
( see chart)

2. Herkimer Diamonds could be used as glass and in electonics
(see ESRT)

3. You had to place a dot at 43 N and 75.5 W ( If you don't know how to find it, see me)

4. You had to draw isobars. ( if you do know how to do this see me)

5. Gradient: Change in field value/distance

Gradient = 10 F/ 200 miles

Gradient = .05 F/miles

6. You had to convert the air pressure: so
208 mb = 1020.8 mb
Remember if the first number is between 1-5, you put a 10 in front and move the decimal point once to the left.

7. Tempertaure generally decreases as litude increases

or
Tempertaure and latitude are inservely related.

Regents Review #2

1. Gradient = change in field value/distance

Point G = 200ft
Point H =100 ft

Gradient = 200 ft -100ft/ 2 miles

Gradient = 100 ft/2 miles

Gradient = 50 ft/mile


2. Contour lines always bend toward the source of a river. As contour lines come in contact with a river they bend in a V shape.

5. 80 ft


Review Sheet # 3

Page 25: Changing Faces of The Moon

1. New Moon
2. Waxing cresent
3. first quarter
4. waning cresent
5. full moon
6. waning gibbous
7. last quarter
8. waning gibbous















Sunday, April 16, 2006

Hey do you want to get extra credit this quarter? Join Virtual March with Mr. Luna and Help fight global warming now!

Long Island Geologic History

Since the geologic history of Long Island always shows up on a few questions on the Earth Science Regents, I would like for you to read the following article from Newsday:

"The Birth of Long Island Colliding continents and towering glaciers forged our beaches and plains, valleys and hills"

Click on the following site above, then I would like you to answer the following questions. This assignment will be graded as a test. Make sure you answer the following questions in complete sentences. Thsi assignment will be due April 28.

1. What type of animals lived here on Long Island, 300 million years ago?

2. During what geologic period was "300 million years ago"?

3. What was the name of the mountain range that existed 300 million years ago.

4.Why can't skyscrapers be built on Long Island? Find out what is the age of the bedrock and what type of sedimentary rock makes up our bedrock?

5. What does the word porous mean?

6. When did the last ice sheet retreat from Long Island? ( in years)

7. What event finally created Long Island?

8. What causes the average global temperature to change? How does this change affect global climate?

9. What formed the oldest rock on Long Island and where can we find this rock today?

10. What was the weather on Long Island like 65 million years ago?

11. How many times was Long Island glaciated?

12. How tall was this ice sheet?

13. What type of animals roamed Long Island during the ice age?

14. What is a moraine, what did they form on Long Island?

15. What is a kettlehole and how is it formed?

16. Give two examples of kettleholes found on Long Island.

Saturday, April 08, 2006



This is George. Our Mascot. He knows nothing about science, but he sure does love the great out doors.