What Is A Solution?
Chapter Name : Is Matter Around Us Pure? |
Sub Topic Code : 102_09_02_01_01 |
Topic Name : What Is A Solution? |
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Sub Topic Name : Types Of Mixtures |
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Introduction
Mixtures and uses in day to day life.
Pre-Requisites:
Basic knowledge on mixtures in day to day life.
Activity:
Take a beaker of water and add 2-3 drops of oil and observe the heterogeneous mixture of oil + water.
Real Life Question:
Why does oil forms a layer over water?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Homogenous mixture | A mixture which has uniform composition throughout the mixture is called as heterogeneous mixture |
| Heterogeneous mixture | A mixture which contain physically distinct parts and have non-uniform compositions. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Homogenous and Heterogeneous classification | Given properties of homogenous and heterogeneous on one column it should be mapped to heterogeneous and homogenous mixtures. |
Real life uses :
Mud water is a heterogeneous mixture of mud and water which can be separated by fitleration.
Practical examples around us
| Examples | Explainations |
|---|---|
| Oil ship wreckage causes more damage. Why? | Because oil and water are heterogeneous mixture due to their difference in densities,they form two different physical layers and oil spreads as a thin film and blocks sunlight and oxygen transfer by which the fishes inside die. |
What you learn in Theory:
Mixtures, Types of mixtures.
What you learn in Practice:
Mixtures and to classify them into homogenous and heterogeneous mixture