Bio Lab

Purpose

The purpose of this lab is to become familiar with the lighted microscope, how to prepare a wet mount, and understand taking measurements in the metric system and its conversions.

Materials & Methods

Materials:

Part A:

* Computer for videos

Part B:

* Tape measure with centimeters

* Scale that measures grams

* Thermometer that shows Celsius

* Campbell Biology Book

* 1 piece Orange Starburst

Methods:

Part A:

Combined Lighted Microscope

1. Watch video on microscope

2. Answer the provided questions on the microscope

Wet Mount:

1. Watch video on wet mount

2. Explain the process of creating a wet mount

Part B:

Width of Book:

1. Lay book flat

2. Take the measuring tape and measure the width of the book in centimeters

Mass of Orange Starburst:

1. Place the scale on flat surface

2. Zero the scale and set the display to grams

3. Place the orange starburst and write down the mass in grams

Meniscus:

1. Answer the provided question on Meniscus in a graduated cyclinder

Temperature:

1. Set thermometer to display temperature in Celsius

2. Take room temperature by turning on the thermometer and noting temperature

3. Take body temperature by placing the thermometer on the back of your hand

Results

Part A: Microscopy

1) Parts of a compound microscope and their functions.

a) Focal Adjustment- helps adjusts the slide into focus

b) Eyepiece- the lens that you look into to see what is on the slide

c) Objective lenses- the lens closest to the slide

d) Stand- Holds all the parts together

e) Light Source- located under the area where you put the slide and helps illuminate the slide for better observation

f) Base- bottom of the microscope

g) Arm- how you carry the microscope and it attaches the tube to the base

2) Determine the total magnification given that you are using a compound microscope with the following objectives: 4X, 10X, 40X, and 100X.

**With