Posts filed under ‘Density’
Long answer and lab assessments are the most dreaded kinds of grading: Here are some step-by-step suggestions to help answer the siren call of the new Common Core Standards and the Next Generation Science Standards.
Plastic particles float like plankton, making up a huge proportion of the diet of filter feeders – from baleen whales to small fish. The possible impact on marine life is huge. What floats and what sinks matters – this engaging issue is used to add context to a unit on density and buoyancy.