Thursday, November 8, 2018

Identifying Pond Microorganisms

In this activity you will use MULTIPLE websites to try to identify some of the microorganisms you are observing in your sample of pond water. 
This is just a picture... you can get ideas from it, but you need to use the websites below to try to identify what you see in your pond water. 
Use the following websites to help you identify as many of the organisms you can see in our pond water sample as possible. Draw detailed diagrams of the organisms you see and draw a comparison diagram from one of the websites.

You MUST try to identify the organisms you see in your water sample by using the images and descriptions you find on the websites. Take a look at several of the websites before you decide what you think the organisms are.



Pond Water Critters ID page

Pond Life ID kit

Virtual Pond Dip


Once you think you've identified a microorganism you may search for other images or videos of it online to confirm your identification.

For example: https://www.youtube.com/watch?v=fmwN_mD7TvY 
and https://www.youtube.com/watch?v=ocv67Px49AA&feature=results_main&playnext=1&list=PL3900A98EEBD72DC2

Also try to identify any organelles you can in the microorganisms you observe. You may see nuclei or flagella or other organelles.
Flash Animation of Cells to DNA – Compares Eukaryotic cells to bacteria and zooms from chromosomes to chromatin to dna.

Cell Size and Scale - interactive
http://learn.genetics.utah.edu/content/begin/cells/scale/

If you use other website, please write them on the back of your "Identifying Pond Water" lab sheet.

Wednesday, June 6, 2018

A timeline of life.... 4.5 Billion years of evolution

A timeline of life.... 4.5 Billion years of evolution

Evolutionary Events and Geologic Time (Deep Time)

Once you've calculated the number of years  between each of the evolutionary events and the distance between each event on your timeline, create an accurate timeline including the number of MYA (millions of years ago) each event occurred.

Use the following images and links (
and others you find on your own) to find images to use as guides for drawing a representative diagram of each event on your timeline. (I included the first few which are more difficult to find... you can find the others on your own.)

Be careful to organize your timeline so you have enough room to draw images for each event... this is easy at the beginning, but very difficult toward the present day... events happen faster and faster toward the present.

Earth is formed
http://www.universetoday.com/58177/earth-formation/















First single celled organisms - you know cells! 
http://learn.genetics.utah.edu/content/begin/cells/organelles/





















Photosynthetic bacteria aka Cyanobacteria 
http://www.astrobio.net/pressrelease/928/when-did-bacteria-appear
























Early multicellular organisms
http://www.dailymail.co.uk/sciencetech/article-1291395/Fossilised-cells-worlds-oldest-multicellular-lifeform.html































Early Plants

















First fish (jawless)
http://www.historyoftheuniverse.com/jawlfish.html


Wednesday, January 10, 2018

Photosynthesis

This simple video does a great job of explaining what the Photosynthesis Equation means at the molecular level. - https://www.youtube.com/watch?v=eJQxHoqIPIM It's on YouTube, so it may not work at school.



The Photosynthesis Rap
https://www.youtube.com/watch?v=x-t0sGyjfto



Photosynthesis Virtual Lab - 

This is just an image... read the rest of the post to find the virtual lab.

In this lab you will be using a computer simulation to test out different variables to see how they affect the rate of photosynthesis.
En este laboratorio va a utilizar una simulación por ordenador para probar diferentes variables para ver cómo afectan a la tasa de fotosíntesis.

To get to the virtual lab CLICK HERE

Para llegar al laboratorio virtual, HAGA CLIC AQUÍ.

Use the handout to keep track of your experiments and your data.
Utilice el folleto para mantener un registro de sus experimentos y sus datos. 


Here is a much more advanced video that takes us deep inside chloroplasts to see what's going on in terms of actually moving electrons around. https://www.youtube.com/watch?v=sQK3Yr4Sc_k