# 5th Grade Science Chapter 11 Definitions

## 17 terms

### Element

The basic building block of matter.

### Weight

A measure of force with which a mass is attracted; is a measure of the pull of gravity on an object

### Mass

Amount of matter in an object

### Volume

The space of an object that it takes up as expressed in cubic units

### Density

The mass of a substance divided by its volume

It floats

### Solid

A state of matter in which material has definite volume and shape

### Liquid

A state of matter with a definite volume but without a definite shape

### Gas

Doesn't have a specific volume or shape

### How do you find the density of an object?

Divide mass and volume

### List 4 examples of physical properties.

Mass,odor, color, and texture

### What happens to water molecules when heat is added? When cooled?

The water evaporates loses energy, moves slower, and spreads apart.

### When does dew form?

By condensation which occurs when a gas turns into a liquid

### Name the parts of an atom.

Nucleus, neutrons, protons, and electrons

### Which two can be found in the nucleus?

Protons and neutrons

### Compare the density of a cup of sugar and a cube of sugar.

The density is the same for a substance no matter how much of the substance is measured. Therefore, a cup of sugar and a cube of sugar have 1.60 grams.

### How are buoyancy and density related to each other?

If it is buoyant, it will float because the object's density is less than the liquid's density which allows the object to float.