Today students looked at two unknown samples (Y and Z) using a dissecting microscope. Next they did an experiment with sample Y to see if adding water and sugar would create any reaction. The results were mixed and students came up with some of the own hypotheses for how to change the results.
For homework:
With your partner (or individually and you can decided when you get to class which experimental set up to use) answer the following questions:
How many grams of sample Y will you use? (0.1g to 3g)
How many grams of food X will you use? (0.1g to 3g)
How many mL of water will you use (10mL-30mL)
What temperature will the water be? (10 degrees C to 100 degrees C).
Tomorrow you will do a second balloon test using these parameters. We will also do the balloon test on sample Z as a class.
Showing posts with label classification. Show all posts
Showing posts with label classification. Show all posts
Tuesday, March 15, 2011
Monday, March 14, 2011
It's Alive?!?!
Dr. Frankenstein exclaimed, "It's aaaaalllliiiiiivvvve!" He sure was excited about his creation, but what does it mean to be alive?
Today we learned about the six characteristics of living things:
1. All living things are made up of cells
2. Living things obtain and use energy
3. Living things grow and develop
4. Living things reproduce
5. Living things respond to their environment
6. Living things evolve.
In order to be a living thing, the organism must meet all six criteria. These salt crystals grow, but they aren't alive.
Make a table, like the one below and fill it in using the list of things below. If you don't know what one of the items is, LOOK IT UP! Not knowing an item is not an excuse for neglecting to complete the assignment.
Today we learned about the six characteristics of living things:
1. All living things are made up of cells
2. Living things obtain and use energy
3. Living things grow and develop
4. Living things reproduce
5. Living things respond to their environment
6. Living things evolve.
In order to be a living thing, the organism must meet all six criteria. These salt crystals grow, but they aren't alive.
Make a table, like the one below and fill it in using the list of things below. If you don't know what one of the items is, LOOK IT UP! Not knowing an item is not an excuse for neglecting to complete the assignment.
Tuesday, September 14, 2010
Berlese Funnels and Dichotomous Keys
Today we went outside and you collected samples for your Berleses funnels. Hopefully on Friday we'll have some organisms to look at :)
We also learned about Dichotomous Keys and created our own for the class. For homework, due on Friday, you will need to make a dichotomous key for the organisms pictured below. There are lots of different ways to make a key, so it's OK if yours is different from someone else's key. Please work on your own to complete this assignment. You do not need to print out the pictures, just write your key in your notebook and bring it to class on Friday.
We also learned about Dichotomous Keys and created our own for the class. For homework, due on Friday, you will need to make a dichotomous key for the organisms pictured below. There are lots of different ways to make a key, so it's OK if yours is different from someone else's key. Please work on your own to complete this assignment. You do not need to print out the pictures, just write your key in your notebook and bring it to class on Friday.
Click on the picture to make it larger.
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