Monday, January 7, 2008

Class Response: Density

In class these days, we have been learning about matter, volume, mass, and the density of an object. Matter is anything that has mass and volume (solid, liquid, gas) and can be found almost everywhere. Did you know that light, electricity, and sound are not matter? Mass is the amount of matter in an object. Mass is usually measured in grams, or kilograms. Volume, on the other hand, is the amount of space an object takes up. Volume is usually measured in centimeters-cubed if the object is a solid, or milliliters (mL) if it is a liquid. Density is the measurement of how much mass is contained in a given volume of an object; mass per unit volume. The formula to find the density of an object is mass divided by the volume of the object. In class, we learned to draw a triangle to help us remember the formulas for finding the mass, volume, and density of an object. It is really helpful. Overall, this subject in science is pretty interesting, and I like learning about it.

My sources: Science Class with Treasure =]

No comments: