Pure cement can be used as a building material in theory, but the most common application of cement is as a binder that holds other materials together. Concrete is made by adding water to a mixture of cement (the binder) and sand, pebbles, and gravel (the aggregate), which cures to form a solid structure. Which reasons could explain why concrete is used to make structures rather than pure cement?

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

What is the percent by mass of oxygen in fe2o3

How hot is the suns corona? (integrated science)