Here's a five-star lesson plan in which inquisitors conduct sophisticated experimentation with cellular respiration in plant seeds. Placing seeds in a closed system they measure the amount carbon dioxide produced and relate it to...

In this photosynthesis, disease and Immune System worksheet, students fill in the blanks with key terms to complete sentences about the transfer of energy from the sun to plants, enzymes as catalysts in reactions, homeostasis, the immune...

In this experimental design and homeostasis worksheet, students complete 20 sentences with key terms about designing experiments, gathering data, graphing data and determining controls. They also complete sentences about homeostasis and...

Eighth graders who have studied all of the organ systems now discover how they all are related and work together in the human body. They discuss a variety of situations in which more than one system plays a part. They identify the...

Sixth graders explain what a negative feedback system is and they distinguish it from a positive feedback system. They describe examples of how negative feedback is used in both nature and technology. , Students define homeostasis, and...