Wednesday, May 3, 2017

Apologia 2.2 Pond Life part B


This is a continuation of the work of our cultures.  Since the cultures will need a baseline to compare to, the students used their cultures to create slides (also contributing to their knowledge of how to work a microscope) and viewed them.  They looked for (and found) many organisms.

See below for some of the findings:

Straw:
40x


100x



400x

Egg yolk:

40x


100x


400x


Rice:

40x
I used some methylene blue to stain this one



100x



400x




Dirt/ soil:

40x



100x


400x




For my students, look at the photos and see if you can identify any of the organisms.  If you did not find any in your samples in class or were unable to see some of the other slides, you may use these pictures for your lab.

Apologia 3.3 Subkingdom Algae

Yes Another microscope lab.  Exploring Spirogyra and Diatoms

Spirogyra-
note the filament

40x
100x
400x




Diatoms-
look for oil spots (stored food)
40x
100x
400x



Apologia 3.2 Subkingdom Protozoa

Okay This is a simple microscope lab, but the students will need to take it farther.

See the photos of the slides below.

Amoeba-
See if you can identify the following: pseudopod, food vacuole, contractile vacuole, ectoplasm, nucleus, endoplasm.

40x

100x

400x



Paramecium-
Identify macronucleus, micronucleus, food vacuole, contractile vacuole, oral groove, gullet, mouth pore, anal pore, cilia



40x
100x
400x






Euglena-
Identify eyespot, contractile vacuole, pellicle, chloroplast, flagellum, nucleus
40x
100x
400x



Volvox-
Identify a colony and look for the individuals


40x
100x
400x




Apologia 2.1 Pond Life part A


Our day took us on a "field trip" to our neighborhood lake.  The students took this time to also do the field study.


They explored around the bank of the lake and discovered the plants and animals around.  Some drew pictures, some took notes, and some took some samples of the things they found.


At the end, we gathered our samples of pond water.  Everyone gathered 1 jar.  With 12 students, that should give us 3 sets of cultures.

Cultures are collections that allow microorganisms to grow and reproduce.

To turn our pond water into cultures, we added some dried straw in 3 jars, white rice in 3, egg yolk (hard boiled) in 3, and soil(which I happen to currently have a mountain of out back) in 3.

Apologia 1.2 Introduction to the Microscope.

The students were not strangers to microscopes, so this was more of a review than an introduction and we did not spend much on it except a few talking points.

The whole day consisted of microscope labs so the students got lots of practice using them.

Biology Spring 2017

A new year with great new students.  Labs are off to a great start!

Day 1 included Apologia Biology labs 1.2, 2.1, 2.2, 3.2, 3.3, and 4.1.