Life Science Lessons
Difficulty Level: This indicates how difficult it is for the teacher to present the lesson, not how hard it is for the student to do the experiment. Difficulty levels vary according to type of equipment needed, preparation time, and scarcity or expense of certain materials.
|Disease Spreading -- Students discover how quickly a “disease” can spread through their pets and then they try to determine which pet had the disease first. This relates to pollution, bacterial infection prevention, acid/base indicators, epidemiology, and logic. Difficulty: Easy|
|DNA -- Students squish various kinds of fruit, then combine the pulp with chemicals and filter it to extract the DNA. This relates to DNA, cell structure, osmotic pressure, chemistry, and filtration. Difficulty: Medium|
|Heart Pumps -- Experiment with pumps and one-way valves to simulate a beating heart. This relates to structure and function of the heart and lungs, circulatory system, oxygen exchange, and one-way valves. Difficulty: Easy|
|Osmosis -- Students combine soap and glue to make slime, then add table salt to see how water is absorbed and released by it. This relates to solids, liquids, states of matter, solutions, differing concentrations, and water transport in cells. Difficulty: Easy|