Matter and Change

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Slide 1

BELLWORK

What is matter?

What is mass and how does it compare to weight?

What word is used to describe the amount of space an object takes up?

Slide 2

Matter and Change

Unit III Properties of Matter

Slide 3

Anything that takes up space and has mass.

Weight is a measure of the pull of gravity on an object; mass is the amount of matter the object contains.

Volume.

Matter and Change

Slide 4

What states of matter are represented in the photograph?

What must you do to a substance to change it’s physical state?

Matter and Change

Slide 5

Matter and Change

Slide 6

The mass of an object is the amount of matter the object contains. A golf ball has a greater mass than a table tennis ball. The golf ball, therefore, contains more matter.

Matter and Change

Slide 7

Matter and Change

Slide 8

Materials differ in terms of the kind of matter they contain.

Table sugar is always 100% sucrose.

It always has the same chemical composition.

Matter that has a uniform and definite composition is called a substance.

Matter and Change

Slide 9

Matter and Change

Slide 10

Substances contain only one kind of matter.

Which of these two is a substance?

H20 or Lemonade?

Matter and Change

Slide 11

All samples of a substance have the same physical properties.

All crystals of sucrose taste sweet and dissolve completely in water.

Matter and Change

Slide 12

A physical property is a quality or condition of a substance that can be observed or measured without changing the substance’s composition.

Matter and Change

Slide 13

Examples of physical properties include:

1.- COLOR

2.- SOLUBILITY

3.- ODOR

4.- HARDNESS

Matter and Change

Slide 14