Theory:

Every object in our environment is made of one or more materials. Glass, metal, plastics, wood, cotton, paper, mud and soil are examples of these materials.
Grouping is the process of separating objects based on the materials they are made of.
In this way, we have separated all of the objects into two groups. Objects made of paper or wood are placed in one group, while objects made of other materials are placed in the other.
Let's take a look at the objects and the materials they are made of.
 
Objects
Material they are made of
Examples
Tumbler
Steel, glass, plasticTumbler.jpg
Plate
Steel, glass, plastic, woodplates (2).jpg
Chair
Steel, plastic, woodchair (2).jpg
Water bottleSteel, plasticWater bottle (1).jpg
Bucket
Steel, plasticBucket (1).jpg
 
Some materials were used to make different types of objects.  Is it really possible?
shutterstock_593918282.jpg
Yeah!! Let us look at the table given below for better understanding.
 
Material they are made of
Objects
Examples
Wood
Pencil, ladder, table, shed, etc. Wood (1).jpg
Paper
Book, newspaper, toy, calendar, etc. paper (1).jpg
Plastic
Pipe, water containers, toys, etc. Plastic (2).jpg
Cotton
Dress, mask, cotton shoe, etc. Cotton (1).jpg
Leather
Shoe, belt, bag, etc. leather material.jpg
 
As a result of the above, we learned that the objects around us are made of both single and different materials.
Additionally, a single material can be used to make a variety of objects.
What decides which material should be used for making any given object?
bulb.JPG
We need to learn about the properties of materials.
Reference:
https://stocksnap.io/photo/shoes-shoelace-698Q9DZHB4
https://pixabay.com/photos/handbag-black-gold-444171/
https://www.flickr.com/photos/queenbeebh/5866853621
https://www.piqsels.com/en/public-domain-photo-fqstn
plate-3491995_1280