Las 3 Week 2

LEARNING ACTIVITY SHEET
SCIENCE 8
WEEK 2
NAME:____________________________YEARR & SECTION:___________________ DATE:_________
PARTICLE MODEL OF THE THREE STATES OF MATTER
MELC: EXPLAIN THE PROPERTIES OF SOLIDS ,LIQUIDS, AND GASES BASED ON THE PARTICLE NATURE OF
MATTER ( S8MT-IIIA-b-8)
OVERVIEW
A single particle does not have the properties of the material it is part of. The properties of a substance
are the properties of a huge number of particles together.
THE THREE STATES OF MATTER
Activity 1. Supply it!

Directions: Supply the missing letter to form a word.
1. S _ L I _ Has definite shape, definite volume
2. L _ Q U _ D Has indifiite shape, definite volume
3. G _ S Has indefinite shape, indefinite volume
Properties of Solids
Solids have definite shapes and volume because the particles are packed closely together in fixed
positions. They vibrate a little but in these fixed positions. The particles cannot move around. The
particles of solids are held together by strong forces. Solids do not flow, do not fill their container
completely. Solids have high densities and solids cannot be compressed much.
Properties of liquids
In liquids, the particles are closer to one another, nudging one another as they move. Since the
particles are closer to one another, the attraction between particles is stronger than those in gases. The
particles move and change positions but not as freely as those in gas. Liquids have fixed volume but they
have no fixed shape. Like solids, liquids cannot be compressed much. Have moderate to high densities
and do not fill their container completely. Liquids generally flow.
Properties of gas
The particles in gas move at random directions very quickly and travel in straight-line paths. In the
process, they collide with one another and with the walls of the container. They change direction only
when they rebound from the collisions. The distance between particles is large compared to the size of
the particles. The attraction between particles is negligible because of the large distance between them.
Gases take the shape of the container because the particles are able to move freely to all parts of the
container. They move freely because they are far apart and there is negligible attraction between them.
Gases can be compressed easily and have a very low densities. Gases fill their container completely and
flow easily.
Activity 2. Draw Me
Directions: Draw inside the box the arrangement of particles in solid, liquid, and gas and explain each
properties
SOLID LIQUID GAS
_____________________ __________________ _________________
_____________________ ___________________ ___________________
_____________________ ____________________ ______________________
_____________________ ______________________ _________________________
_____________________ _______________________ ___________________________
Activity 3. Fill Me Up
Directions: Fill in the table below that explain the different properties of the three states of matter.
Select the word from the word bank.( some words can be answered repeatedly)
Definite very close not compressible densest cannot flow able to flow
Indefinite slightly further able to flow far from one another highly compressible
low density dense
PROPERTY SOLID LIQUID GAS

Shape
Intermolecular spacing
Volume
Compressibility
Density
Ability to flow
Assessment
Directions: Encircle the letter of a correct answer
1. Which best explain the properties of solid?
a. Solid can flow b. solid has definite shape
C solid has indefinite volume d. solid cant flow and hard
2. Which best explain the properties of liquid?

a. Liquid has indefinite shape and definite volume
b. Liquid particles are closely tightly packed
c. Liquid cant flow
d. Liquid particles move at high speed
3. Which best explain the properties of gas?

a. Particles in gas are well separated with no regular arrangement
b. Particles in gas are tightly packed
c. Particles in gas vibrate, move about and slide past each other
d. Particles in gas do not move from place to place
4. Particles are packed closely together. The forces between the particles are strong enough that
the particles cannot move freely; they can only vibrate. As a result, it has stable definite shape
and definite volume. This explain the properties of;
a. Solid b. liquid c. gas d. plasma
5. Which does NOT belong to the group?

a. Sprite b. vinegar c. water d. bottle

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LEARNING ACTIVITY SHEET

NAME:__________________YEARR & SECTION:_ DATE:_

PARTICLE MODEL OF THE THREE STATES OF MATTER

THE THREE STATES OF MATTER

Activity 1. Supply it!

1. S _ L I _ Has definite shape, definite volume

2. L _ Q U _ D Has indifiite shape, definite volume

3. G _ S Has indefinite shape, indefinite volume

low density dense

PROPERTY SOLID LIQUID GAS

2. Which best explain the properties of liquid?

3. Which best explain the properties of gas?

5. Which does NOT belong to the group?

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