Explore the characteristics of inclined planes while observing how drops of colored water flow down a ramp and on different surfaces.
Video program explains the difference between observation and experiment and the principles of experiment design. Lesson draws on real-life example of osteoarthritis study and a randomized comparative experiment. [28:39]
Students analyze the relationship between wheel radius, linear velocity and angular velocity by using LEGO(TM) MINDSTORMS(TM) NXT robots. Given various robots with different wheel sizes and fixed motor speeds, they predict which has the fastest linear velocity. Then student teams collect and graph data to analyze the relationships between wheel size and linear velocity and find the angular velocity of the robot given its motor speed. Students explore other ways to increase linear velocity by changing motor speeds, and discuss and evaluate the optimal wheel size and desired linear velocities on vehicles.
Students use microscopes to look at single-celled organisms. [3:48]
In addition to overviewing Compton's (1892-1962 CE) studies in x-rays, this article includes information on Compton's published works, his education, and personal life.
Students will make predictions and conduct an experiment using marbles to figure out what types of things can cause a moving object to change direction. Included is a video of the lesson in action, pictures, discussion questions, and a recording sheet.
Students will be able to design and conduct their own simulation to determine the probability of an event.
Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.
By the end of this section, you will be able to do the following:
Identify the shared characteristics of the natural sciences
Summarize the steps of the scientific method
Compare inductive reasoning with deductive reasoning
Describe the goals of basic science and applied science
Covers Mendel's first set of experiments and his conclusions.
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Introduction to scientific experiments.
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Introduction to scientific experiments.
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Covers the scientific experimental design.
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Covers how scientists study the natural world.
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How scientists study the natural world.
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Covers steps of the scientific methods and control group.
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How scientists think about the natural world.
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This is a group of Mendelian Genetics exercises that are designed to show the evolution of a trait within a population. The site covers instruction in calculating genotypic and allelic frequencies, determining dominance, the Hardy-Weinberg equilibrium, neutral genetic drift, and natural selection.
