Curated OER
The Big Bang-Cosmic Expansion
In this Big Bang worksheet, students are given the equation used to determine the rate at which the universe is expanding according to the Big Bang theory. Students solve 4 problems using this equation. They find the integral for time,...
Utah State Office of Education
Utah Science: Matter
Discover atoms and molecules which make up matter, motion of atoms and how to measure the mass, volume and density of matter.
Utah State Office of Education
Utah Science: How Does Density Affect the Earth?
Density is a property of matter which affects how mixtures are sorted. The activities offered in this module help us to understand the way matter naturally sorts itself with mathematical applications and hands on opportunities.
Simon Fraser University
Chem1 Virtual Textbook: Densities of Substances and Materials
As part of a larger site called "Getting started in Chemistry," this site examines various topics related to the densities of substances and materials. Included in the study are properties of solids, liquids and gases, and how density is...
Science Struck
Science Struck: Translucent, Transparent, and Opaque Materials
The definitions of transparent, translucent, and opaque can be found here. The article explains how the density of a material and its ability to absorb light determine which of these three properties it has. A list of examples is given...