Lesson 3 - Substances and their Properties

What is a SUBSTANCE?

• A microscope

• Matter that has a constant chemical composition and characteristics.

• Water

Tags

NGSS.MS-PS1-2

The word macroscopic means that it is at a scale that you can see with your eyes.

• True

• False

______ is the amount of space an object occupies.

• Mass

• Volume

• Property

________ is the amount of matter in an object.

• Mass

• Volume

• Property

A characteristic of a substance is called a __________

• mass

• volume

• property

Density is a property that does not depend on the shape or size of an object. What is the equation for density?

• Density = mass/volume

• Density = property/mass

• Density = volume/mass

Using the equation for density:

 $Density\ =\ mass\div volume$  
Determine the density of oxygen. Mass=1.4, Volume= 1000

Using the equation for density:

 $Density\ =\ mass\div volume$  
Determine the density of Hydrogen Peroxide -  Mass=174, Volume= 120

Melting point is the temperature at which a substance changes from

• Solid to liquid

• Liquid to solid

Tags

NGSS.MS-PS1-4

Boiling point is the temperature at which a substance changes from

• Solid to liquid

• Liquid to gas

Tags

NGSS.MS-PS1-4