Sci7- Lesson3Matter

Lesson 2

Diversity of Materials in

the Environment

by Ms. Abbariao

​THINK AND PLAY

​Guess the components of the following!

​THINK AND PLAY

​Guess the components of the following!

​Matter

​anything that occupies space and has mass or volume

​Classification of matter based on its composition

Pure substances

​a pure substance is a sample of matter with both definite and constant composition and distinct chemical properties. To avoid confusion, a pure substance is often referred to as a "chemical substance."

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​It can be an Element or Compound.

Pure substances

​Element -

An element is a material that consists of a single type of atom.

​Compound

​ consists of two or more types of elements held together with different bonds.

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​Mixture

​a combination of two or more substances that are not chemically combined, each retains its own characteristic.

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​Can be Homogenous and Heterogenous

​HOMOGENEOUS MIXTURE

​a mixture in which the composition is uniform throughout the mixture. It can be a Solution or Colloid.

​HETEROGENEOUS MIXTURE

​a mixture in which the composition is not uniform throughout the mixture.

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​It can be Suspension or a Phase.

​SOLUTIONS (homogeneous)

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COLLOIDS (homogeneous)

Phase (heterogeneous)

The suspension (heterogeneous)

​THINK AND PLAY

Fill in the missing letters to get the answer

Open Ended

A pure substance made from a chemical combination of at least two different elements.

C _ m p _  _ _ _ _

​Answer:

​COMPOUNDS

Open Ended

It is made up of only one kind of atom. 

E _ em_n_

​Answer:

​ELEMENT

Open Ended

Anything that occupies space and has mass.

M_ _ t _r

​Answer:

​MATTER

Open Ended

Type of heterogeneous mixture.

s__pen__o_

​Answer:

​SUSPENSION

Open Ended

The 2 types of a homogeneous mixture.

S_l_t__n   and  C____i_

​Answer:

​Solution and Colloid

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