This week in CoBio we are studying Plant nutrition and how plants make their own food by photosynthesis. To follow up on our first lesson we discussed why do plants such as Venus Fly Traps catch insects. The trap itself is an adapted leaf so it does do photosynthesis and can make its own glucose (food). However, the soil it grows in is lacking nitrates and phosphates required to make amino acids. This plant has adapted to this soil by catching and digesting insects to obtain mineral ions.
This week in Coordinated Science (Biology) we prepared for the second test on plants and started the new Respiration topic. Students observed how much energy there is in a jelly baby by observing the screaming jelly baby demo (candy placed in warm potassium chlorate) and then investigated how much energy is in crisps, crackers and peanuts. This was also an opportunity to review food groups and balanced diets. The students concluded that the crackers stored the most energy although after their evaluated of the experiment there were a number of factors that meant this was not the a very valid and reliable investigation.
Again excellent creativity shown today by S1 Ivory. I’m not sure who’s model cells are better S1 Pearl or S1 Ivory.
Listen to TED debate on does the world need Nuclear energy?
Research some of the arguments/viewpoints and include them in your one world essay.
Listen to interesting science podcasts with The Naked Scientists as well as trying out some of their “kitchen” science experiments.