Introduction to Biology Lab & Class Activity Worksheets

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Introduction to Biology Lab & Class Activity Worksheets

Contents

LAB: The Penny Drop Lab .................................................................................................... 2

LAB: Variables- Alka Seltzer Activity ................................................................................... 6

LAB: Shape of Water versus Drop Height ......................................................................... 10

LAB: Graphing Review ....................................................................................................... 15

LAB: Shape of Water versus Drop Height ......................................................................... 21

LAB: Graphing Review ....................................................................................................... 26

LAB: Using the Compound Microscope ............................................................................ 32

LAB: Exploring Cells ........................................................................................................... 47

LAB: Examination of Onion Cells ....................................................................................... 53

LAB: Examination of Elodea Cells...................................................................................... 58

LAB: Measurement of Cell Types ...................................................................................... 63

CLASS ACTIVITY: Cellular Organelle Group Projects ........................................................ 66

CLASS ACTIVITY: Cell City Analogy .................................................................................... 73

CLASS ACTIVITY: Respiration and Photosynthesis Group Projects .................................. 75

LAB: Yeast Anaerobic Respiration Lab .............................................................................. 80

LAB: Photosynthesis .......................................................................................................... 89

LAB: Mitosis....................................................................................................................... 98

LAB: Meiosis .................................................................................................................... 101

CLASS ACTIVITY: Opinion Paper on Genetically Modified Foods ................................... 104

CLASS ACTIVITY: Alien Taxonomy ................................................................................... 108

CLASS ACTIVITY: Taxonomy, Classification, and Dichotomous Keys .............................. 110

LAB: Plant Biodiversity .................................................................................................... 112

CLASS ACTIVITY: Natural Selection ................................................................................. 122

CLASS ACTIVITY: Case Studies in Bioethics and the Cost of Medical Treatments ......... 126

LAB: Bioethics Debates .................................................................................................. 130

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LAB: The Penny Drop Lab

NAME:______________________

DATE:_______________________

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SCIENTIFIC METHOD

The Penny Drop Lab

Introduction: Which side of a penny will hold more drops of water before spilling over

on to a paper towel?

OBJECTIVE: In this activity, you will use the scientific method of inquiry to perform a

laboratory experiment. The basic parts of the scientific process include the following:

1. Make observations

2. Formulate an hypothesis

3. Test the hypothesis

4. Collect and analyze data

5. Draw a conclusion

Materials:

Small beaker of distilled water

Paper towels

one pipette

One penny

Alcohol

2 cotton balls

Ruler

PROCEDURE:

1. As you follow the instructions to complete this lab, fill in the steps of the

scientific method by writing what you did at each step.

STATE PROBLEM:

____________________________________________________________

____________________________________________________________

____________________________________________________________

____________________________________________

RECORD SEVERAL OBSERVATIONS ABOUT THE PENNY:

a. (Sample answers include : civilizations had a number system, a

language, honored important people, knowledge about metallurgy and

architecture, tools for mining, religion, etc.)

b.

c.

d.

e.

f.

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g.

FORMULATE A HYPOTHESIS:

____________________________________________________________

____________________________________________________________

____________________________________________________________

____________________________________________

TEST THE HYPOTHESIS ¨C PROCEDURE:

1. Using a paper towel, clean both sides of the penny with alcohol.

Why do you think you are doing this?

2. On the lab table, place the penny heads up on a paper towel.

3. Squeeze the bulb of the pipette so that one drop lands on the penny.

Record this number in the data table.

4. Wipe the penny dry of water.

5. Repeat steps 1-4 two more times. Record these numbers in the data

table.

6. Calculate the mean (average) of the three trials and enter in the data

table.

7. Flip the penny to the tails side and repeat steps 3-6.

DATA TABLE:

HEADS

Trial 1

Trial 2

Trial 3

MEAN

TAILS

MEAN

Trial 1

Trial 2

Trial 3

ANALYZE DATA:

HEADS ¨C

TAILS ¨C

GRAPH DATA:

Construct a bar graph using your data collected. Plot the MEAN data for both heads and

tails on the same bar graph. Color the bar graph using one color for heads and a

different color for tails. Remember to label all parts of your bar graph.

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STATE YOUR CONCLUSION:

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