Lesson 1 - Classification Of Materials Flashcards
List a number of objects around us…
Pencils,books, shoes, water,food, drinks,chocolate,pens,cars,the sun,etc.
Some of these objects are …………………. and other objects …………..
a. Natural b.Man-made
All objects are of different ………………., ………………… and ……………….
a.shape
b.size
c.texture
In order to understand objects around us, it is necessary to ………………… them into. groups.
classify
Define the following
1. An object
2. A material
3.An insulator
4. Transparent material
5. Opaque material
6. Translucent material
7. Absorbent material
8. A conductor
An object is anything you can see or touch
A material is the matter in which an object is made
An insulator is a material that doesn’t conduct heat or electricity
A transparent material is a material that lets light pass through and you can see through
An opaque material is a material that allows no light pass through it and is not transparent
A translucent material is a material that allows light through it partially and doesn’t allow it to pass through partially
An absorbent material is a material that soaks up water
A conductor is a material that allows heat and electricity to pass through it
What is classification of objects
Classification of objects is when we sort objects into groups based on their shape,size,color, material,use,etc.
The classification of objects into groups makes it easier to ……………..………. and ………. with them
Locate and work
All objects can be classified into two main groups. Name them
Living
Non living things
Objects can be classified into groups on the basis of the nature of materials they are made of. Give examples of this?
Objects made of plastic,glass,metal and fabric
Objects made of wood
1. Where does wood come from?
It comes from trees
- Mention 3 features of wood?
It is flexible,strong and hard
- Wood is not an insulator of heat and electricity
True or False
False
It is used to make things such as: (mention 5)
Chairs
Tables
Pencils
Spatulas
Stools
Mention 5 properties of metal objects
Hard
Shiny
Strong
Conductors
Cannot be easily compressed
Mention 5 properties of objects made of glass
Transparent
