Regents Exam Lab Practical Review Station 1 Mineral

Regents Exam Lab Practical Review

Station 1 Mineral Identification • Identify 2 minerals by name based on identification tests

Station 2 Rock Classification • Using charts, you will classify a rock as igneous, sedimentary or metamorphic in one or more complete sentences. Igneous Sedimentary Metamorphic Intergrown crystals Layers Bubbles Visible sediments Glassy texture Fossils Distorted layers Visible flakes

Station 3 Angular Measurement • Using a plastic hemisphere with the approximate path of the sun draw on it, you will locate the position of the sun at a given time. • You will measure the distance between the sun’s position and a fixed point on the dome.

6 am – 12 pm = ? degrees Sun moves at 15º per hour 6 hours x 15 degrees/hour= 90 degrees 12 noon 2 pm 9 am 5 pm East 6 am South 5 pm 2 pm 12 noon North 9 am 6 am West

9 am – 2 pm = ? degrees Sun moves at 15º per hour 5 hours x 15 degrees/hour= 75 degrees 12 noon 2 pm 9 am 5 pm East 6 am South 5 pm 2 pm 12 noon North 9 am 6 am West

9 am – 12 pm = ? degrees Sun moves at 15º per hour 3 hours x 15 degrees/hour= 45 degrees 12 noon 2 pm 9 am 5 pm East 6 am South 5 pm 2 pm 12 noon North 9 am 6 am West

12 noon 2 pm 9 am 5 pm East 6 am South 5 pm 2 pm 12 noon North 9 am 6 am West

5. 9 cm

Station 4 Mass Density • Using a scale, you will measure the mass of a mineral. • You will be given the density of the sample. • Using the mass you measured and the density given to you, you will calculate the volume of the sample.

Station 5 Settling Time • You will drop beads of three different sizes into a tube filled with a liquid and measure the time that it takes for the bead to settle. • Three times for each size will be measured and averaged.

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Station 6 Graphing • Using the data collected from station 5 (bead drop) you will graph three data points. • Using the line drawn on the graph, you will determine the settling time for a theoretical bead of a given size.

seconds 4 3 And what about at 2. 5? 2 3. 2 seconds And what about at 6? 1. 6 seconds 1 1 2 3 4 centimeters 5 6

A note on rounding and labeling • Read the station directions carefully • If it says to label your answer, then do it. • If it says to round to the nearest tenth, hundredth, etc. , do it.