In this video Paul Andersen defines Q10 as the ratio between reactions at different temperatures. He then gives you an example of how it could be calculated. He also includes extensions of other scientific phenomenon that could created...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on causal relationships. TERMS: Cause - a thing that gives rise to an event Effect - an event Relationship - interconnection between parts of a system This...

In this video Paul Andersen explains why astronauts are weightless. He also explains how Newton's Universal Law of Gravitation can be used to calculate the gravitational force between objects.

In this video Paul Andersen shows conceptual thinking in a mini-lesson on causal patterns at varying scale. TERMS Patterns - regularity in the world Scale - the relative size or extent of something System - a set of components (e.g....

Paul Andersen explains how a respirometer can be used to measure the respiration rate in peas, germinating peas and the worm. KOH is used to solidify CO2 produced by a respiring organism.

Paul Andersen explains how populations experience exponential. He begins by address the major players; N (population size) and r (growth rate). He models population growth in rabbits through four generations. He then shows you how to use...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on describing scale. TERMS Scale - the relative size or extent of something Objects - a material thing that can be seen and touched Phenomena - observable events in...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on causation and correlation. TERMS: Relationships - interconnection between parts of a system - Causal - cause-and-effect relationships - Correlational - a mutual...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on cause, mechanism and effect. TERMS: Cause - a thing that gives rise to an event Effect - an event Mechanism - the process underlying a phenomenon System - a set of...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on simulating systems. TERMS: Simulations - imitation of a situation or process Interactions - reciprocal (two-way) action or influence Energy - the ability to cause...

In this video Paul Andersen explains how the conservation of mass was replaced with the conservation of mass-energy when it was determined that they are equivalent. This famous equation not only show the mass-energy equivalence but can...

In this video Paul Andersen explains how the internal energy of a system can change as the internal structure of the system changes. An object model will not be able to account for the restoring forces and so a system model must be used....

In this video Paul Andersen shows conceptual thinking in a mini-lesson on inputs, processes and outputs in a system. TERMS: System models - a representation of a system Interactions - reciprocal (two-way) action or influence Inputs -...

Paul Andersen explains the importance of modeling in science and engineering. Models are used by scientists to explain phenomenon. Unlike mental models, conceptual models can be shared by all scientists to improve our understanding of...

Paul Andersen explains how he is using the blended learning cycle in his science classroom. This cycle moves through the following steps; QUestion, Investigation/Inquiry, Video, Elaboration, Review and Summary quiz

Paul Andersen explains how the behavior of various organisms is shaped by natural selection. The action of phototropism and the timing of photoperiodism have both been shaped by the relative availability of light. Courtship in the bower...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on the hierarchy of systems. TERMS: System interactions - Complex systems - consisting of many different and connected parts Sub-systems - a self-contained system...

Paul Andersen explains how stability and change are regulated in systems through controls and feedback. Controls are used to regulate matter and energy flowing into a system. Feedback mechanisms within the system are used to regulate...

Paul Andersen explains how aposematic coloration (or warning coloration) is used for protection in the natural world. He explains how bright colors can be caused by either sexual selection or a warning coloration to predators. He also...

In this video Paul Andersen gives an overview of the human urinary system. The system consist of the kidneys, ureters, bladder, and urethra. The kidneys excrete waste from the blood in urine. He explains how the nephron is responsible...

In this video Paul Andersen shows conceptual thinking in a mini-lesson on boundary and initial conditions within systems. Boundary conditions - the dividing line between system and environment Initial condition - the beginning state of...

In this video Paul Andersen explains how humans use information technology and instrumentation to better understand their surrounds. Technologies (including X-rays, computers, and phones) use electromagnetic waves to improve the lives of...

In this video Paul Andersen explains the difference between chemical and physical processes. Chemical processes occur when bonds are broken and reformed. Physical processes occur when intermolecular forces are broken and reformed. A gray...

Paul Andersen describes how cell communication is used in both single-celled and multicellular organisms. He starts by describing the symbiotic relationship between the bobtail squid and the bacteria Vibrio fisheri. He explains how...