This 11-minute video lesson attempts to comprehend the size of the universe …
This 11-minute video lesson attempts to comprehend the size of the universe and the scale of the large. [Cosmology and Astronomy playlist: Lesson 57 of 85]
This 13-minute video lesson attempts to comprehend the scale of the small: …
This 13-minute video lesson attempts to comprehend the scale of the small: from honey bees, to cells, to viruses, to atoms. [Cosmology and Astronomy playlist: Lesson 58 of 85]
This 5-minute video lesson looks at seasons and why they aren't dictated …
This 5-minute video lesson looks at seasons and why they aren't dictated by the Earth's closeness to the sun. [Cosmology and Astronomy playlist: Lesson 69 of 85]
This 9-minute video lesson considers seismic waves and how they are related …
This 9-minute video lesson considers seismic waves and how they are related to the composition of the Earth. It covers both S-waves and P-waves. [Cosmology and Astronomy playlist: Lesson 51 of 85]
This 6-minute video lesson looks at the Mohorovicic Seismic Discontinuity: the boundary …
This 6-minute video lesson looks at the Mohorovicic Seismic Discontinuity: the boundary between crust and mantle (or Moho). [Cosmology and Astronomy playlist: Lesson 54 of 85]
Students design a simple behavioral survey, and learn basic protocol for primary …
Students design a simple behavioral survey, and learn basic protocol for primary research, survey design and report writing. Note: The literacy activities for the Mechanics unit are based on physical themes that have broad application to our experience in the world â concepts of rhythm, balance, spin, gravity, levity, inertia, momentum, friction, stress and tension.
The students discover the basics of heat transfer in this activity by …
The students discover the basics of heat transfer in this activity by constructing a constant pressure calorimeter to determine the heat of solution of potassium chloride in water. They first predict the amount of heat consumed by the reaction using analytical techniques. Then they calculate the specific heat of water using tabulated data, and use this information to predict the temperature change. Next, the students will design and build a calorimeter and then determine its specific heat. After determining the predicted heat lost to the device, students will test the heat of solution. The heat given off by the reaction can be calculated from the change in temperature of the water using an equation of heat transfer. They will compare this with the value they predicted with their calculations, and then finish by discussing the error and its sources, and identifying how to improve their design to minimize these errors.
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