IMPORTANT
LAB SKILLS YOU NEED FOR THE REGENTS EXAM
1. HOW WELL YOU READ AND
FOLLOW DIRECTIONS!!
2. YOUR ABILITY TO USE THE EARTH
SCIENCE REFERENCE TABLES
3. YOUR SKILL, KNOWLEDGE, and
ACCURACY IN PERFORMING EARTH
SCIENCE PROCEDURES
THREE LAB STATIONS
9 mins. each
1. IDENTIFICATION OF ONE MINERAL AND
CLASSIFICATION OF TWO ROCKS
2. LOCATING AN EARTHQUAKE EPICENTER
3. CONSTRUCTING AND ANALYZING AN
ELLIPTICAL ORBIT
Mineral Identification
1. Luster: metallic or non-metallic
2. Cleavage or Fracture: cleavage/even or fracture/unevensurfaces
3. Streak: Color or Colorless or white (white ceramic plate)
4. Hardness: Soft or Hard (glass plate)
Rock Classification – Use ESRT charts
1. Igneous –CRYSTALS (extrusive/small crystals) (intrusive/large crystals)
2. Sedimentary – SEDIMENTS (fossils, shells, sand, dry mud, pebbles)
3. Metamorphic – CRYSTALS (banding/black & white crystals in alternating layers) or
(nonfoliated distorted crystals that are one color)
Do NOT give the name or color of the rock!!!!
Locating an Earthquake Epicenter
1. Subtract the difference between the
P wave and S wave.
2. Use ESRT to determine the distance.
3. Use the distance scale and compass to draw
the circle.
4. Mark “x” where 3 circles intersect (epicenter).
USE INDEX CARD TO MARK OFF THE
DIFFERENCE IN ARRIVAL TIME
4:10
2800 km
Recording the difference in arrival time:
San Francisco: 4:10
2,800 km
5,000
4,000
3,000
2,000
0
1,000
Line your compass up to the
EXACT distance on the scale.
Use the metric side (cm)
beginning from zero.
Constructing and Analyzing an
Elliptical Orbit
Measure the distance between foci to the nearest tenth.
Measure the length of the major axis to the nearest tenth.
Use formula and calculate eccentricity to the nearest
one-thousandth (example: 0.234) (do NOT include unit)!
*MORE elliptical = GREATER ECCENTRICITY (higher value)
*LESS elliptical = LESS ECCENTRICITY (lower value)
MARK AN “s” ON ONE FOCUS WHERE THE SUN IS
READ AND FOLLOW
ALL DIRECTIONS
EXACTLY
BEFORE
YOU DO ANYTHING!!!