PRESENTATION OUTLINE
Matter
This chapter is all about matter. Matter is basically anything that has mass and takes up space. There are three states of matter: Solid, liquid, and gas.
Volume
The amount of space matter takes up is volume. The SI unit to measure volume is meters (m). To measure volume of solids, use the formula L x W x H. Use a graduated cylinder to measure volume of liquids.
Mass and Weight
The amount of matter there is in an object is called mass. The gravitational force on an object is called weight. To measure mass and weight, you use a triple beam balance. The SI unit of mass is grams (g).
Physical Properties and Changes
A physical property of matter is a characteristic that can be observed or measured without changing the matter's identity. Some examples are color, texture, or oder. Physical changes of matter is when there is a change to a matter without a change in chemicals. An example is ice melting.
Density
Density is a physical property that describes the relationship between mass and volume. Density is like the main physical property.
To find density, you must divide the mass by the volume of an object.
Chemical Properties and Changes.
Chemical properties describe matter based on its ability to change into new matter. Chemical changes are when matter changes into a completely new substance with new and different properties. So basically the opposite of physical changes.