life science week 5
Students did a lab with agar cubes of different sizes to see why cells aren’t larger than they are (oxygen can’t diffuse to the middle fast enough). I did a demo with eggs with shell removed with vinegar. One was placed in distilled water and it gained weight due to osmosis and one placed in salty water lost weight. We started a DNA unit on friday with a informational packet that had them answer questions and color the different parts of DNA.