Students are exploring liquid, one of the states of matter. They are exploring the properties of six different unknown fluids as they roll them in bottles down ramps. This is a part of a first grade FOSS physics unit.
The second graders are in the middle of a geology unit on weathering and are investigating the focus question - What happens when rocks rub together?
Using a magnifying lens, they examine an assortment of rocks, compare and contrast them and then rub them together to create sand.
Students have been investigating seeds and are now engineering solutions to the focus question - How do seeds disperse away from the parent plant? After studying the variety of dispersal methods (examples: animals, wind water, projectile) the students are given the task of designing their own dispersal method. Using a variety of materials, students construct the structure around the seed and test it outside with buckets of water, their own sweatshirts, wind and air.
The focus question - How does energy transfer in a food web?, guides the students as they investigate energy systems on FOSSWeb. The students research an ecosystem (for example, Mono Lake) and create food webs with the local organisms.
Fifth graders are dissecting owl pellets and learning a bit of comparative anatomy as they analyze the diets of these raptors. Carefully removing feathers and fur from the pellets, the students compare their findings with bone charts of birds, shrews, moles and voles to identify the owl's prey.
Note: The pellets are regurgitated remains of the undigested fur, feather and bones of owl prey. Because the owl does not have teeth, only a very powerful beak, they swallow large parts of these animals and later regurgitate the non-digestible parts of the animal. These pellets are obtained from a biological supply house that packages and sterilizes them for research use.