Comparing Volumes of Cylinders, Spheres, and Cones- In this interactive from Annenberg Learner’s Learning Math, compare the volumes of a cylinder, cone, and sphere that all have the same radius and height. In the accompanying classroom activity, students fill cylinders, spheres, and cones with water in order to compare volumes of shapes with equal height and radius. They use the interactive to further explore the concept.
This is an 8th Grade Common Core guided, color-coded notebook page for the Interactive Math Notebook on Finding the Radius of a Sphere.Included is a color-coded diagram with academic vocabulary of a sphere, the great circle and the circumference. Also included is a color-coded, step by step example problem for finding the radius of a sphere given the circumference and a color-coded, step by step example problem for finding the volume of a sphere given the circumference of a circle.
The Sun or Sol, is the star at the centre of our solar system and is responsible for the Earth’s climate and weather. The Sun is an almost perfect sphere with a difference of just 10km in diameter between the poles and the equator. The average radius of the Sun is 695,508 km (109.2 x that of the Earth) of which 20–25% is the core. Image Credit: SOHO/EIT
Inspired by a picture on the USGS website Each blue sphere is to scale assuming the Earth is a sphere with a radius of 40 cm (15.74 inches). The largest one is all of the water on Earth. The mid-sized sphere is all fresh liquid water and the smallest is lake and river water only. The white base is a slice of a 40 cm sphere (size of the Earth) More information here
Throughout the world, stone spheres are found. The most famous are the ones from Costa Rica, but also in Mexico, Australia, Egypt and Bosnia spheres have been discovered. Some of them have a radius of almost 3 meters and weigh about 15 tons. They are finished rather smoothly and almost perfectly round. Most of them are made of a volcanic mineral called gabbro, that is not commonly present in the neighborhood of the places where the spheres are found.
The radius of Atom: Hello friends, we are going to discuss the atomic radii. The general picture of an atom in our mind is that of a sphere. If it is regarded as correct, then it is defined as: The distance from the center of nucleus to the outermost shell containing the electrons. When move down to group on periodic table no of shell increase. Therefore, atomic radius(size) also increases.The size of an atom will decrease as you move from left to the right of a certain period.