Which brand of pop do you think is most acidic....Mountain Dew, 7-Up, or Sprite? All three varieties have a lemon-lime flavor. To determine the answer, we carefully performed a titration lab by adding drops of Sodium Hydroxide to the acidic pop and despite numerous trials on each pop the only consistent results we got was that Mountain Dew is the LEAST ACIDIC.
What effects one's heart rate? In Biology 30 we suggested factors like exercise, diet, stimulants such as caffeine, the weather, our emotions, gender, age, etc. We then performed an inquiry lab where students selected which one of the listed factors they would like to design an experiment on that would show how their chosen factor affects one's heart rate. With just two groups, one group tested the effects of cold on the heart rate and the other group tested the effects of watching/ playing a scary video game. Here are some pictures.
Today in Biology 30 we experimented with factors that influence enzyme action rate. In this test we are seen placing our hands in an ice cold bucket of water for 1 minute before attempting to break 10 toothpicks. In this activity, the toothpicks are the substrate and our hands are the enzymes. Temperature is one of the three factors we tested.
We concluded our study of different health care philosophies today by enjoying a class of yoga. Yoga is an ancient practice that focuses on the mind and body by working with one's pranayama (or breath) while holding different asanas (or poses). Yoga is an example of complementary and alternative medicine. Here are some pictures of today's class.
It was a real pleasure to have Elder Hugh Lerat speak to our Health Science 20 class. Hugh is a Cree Indian from Cowessess First Nation who has been praticing Indigenous Medicine for many years. Taught by his Grandma, Hugh shared with our class many stories about his culture's rituals. This included the Sweat Lodge, the Sun Dance, and the Pipe Ceremony. He also packed with him many of his medicines for us to see. Here are some of the photos from today's class.
Today in Science 10 we demonstrated the scientific method. We tested whether or not it would be possible to suck a shelled hard boiled egg into a narrow neck flask without damaging it. Proving more difficult than years past, all groups were able to get the egg into the flask (some groups by pushing the egg). No groups were able to do it without damaging the egg, which forces me to ask, if anyone wants egg salad. Here are some pictures of our experiment.
We had more success expelling the contents using vinegar and baking soda!
