The video tutorial explains how to classify and sort objects, specifically using plastic building blocks. It demonstrates sorting by color and size, and encourages viewers to think of other ways to sort objects around them.

What is the main focus of the introduction in the video?

• Classifying and sorting objects

• Building a house with blocks

• Discussing the properties of metals

• Explaining the history of plastic

How are the plastic building blocks first sorted in the video?

• By weight

• By color

• By texture

• By material

Which color is not mentioned when sorting the blocks by color?

• Red

• Green

• Blue

• Yellow

What is the second method used to sort the building blocks?

• By texture

• By weight

• By size

• By shape

What is suggested as a further exploration in sorting objects?

• Sorting by temperature

• Sorting by taste

• Sorting by sound

• Exploring other ways to sort objects