# Mass Volume and density Test

## 23 terms

### Mass

The amount of matter in an object

### Volume

The amount of space an object takes up

### Density

The ratio of mass to volume

D= Mass/volume

### Matter

Anything that has a mass and a volume and takes up space

### Atom

basic unit of matter

### Weight

The downward pull of an object from gravity

### Electrical conductivity

Ability to conduct electricity

### Balance

If two things balance each other they have the same amount of matter

### Cm3 and ML

Equal to each other

### What the differences between matter, mass, weight, and volume?

Matter is in every object mass is how much matter in an object weight is the downward pull of an object, and volume is the amount of space an object takes up.

### How small are atoms?

atoms are so small that they can't be seen with the strongest microscope

### How do atoms combine to form molecules?

They bond to form molecules

### Reactivity

Response to something

### Quantitative

Number with units

### Qualitative

Without measurement observation

### How are atoms and molecules always moving?

They're always moving to try to form new substances

### Displacement

Volume of object = final volume - initial volume

### What is the volume of a rectangular box?

(Length)(Width)(Height)

(Pi R2)h