Cedazo

The video tutorial explains the concept of using nets and sieves to separate items based on size. It begins with a discussion on fishing techniques that allow young fish to escape while retaining larger fish. The tutorial then introduces sieves, describing their function in separating solids of different sizes. Various applications of sieves are covered, including their use in kitchens and farming. The video details how sieves work by allowing smaller particles to pass through while retaining larger ones, and concludes with an explanation of how the size of a net or grid determines what can pass through.

What is the primary purpose of the holes in a fishing net?

• To allow water to pass through

• To let smaller fish escape

• To make the net lighter

• To catch more fish

In what context might you find a small hand sieve being used?

• In a car workshop

• In a library

• In a kitchen

• In a construction site

How do farmers use sieves in their work?

• To plant seeds

• To water crops

• To separate wheat grains

• To harvest fruits

What determines the size of particles that can pass through a sieve?

• The material of the sieve

• The color of the sieve

• The size of the grid

• The weight of the particles

How can different sized grids be used in sieving?

• To increase the speed of sieving

• To separate particles of different sizes

• To change the color of particles

• To make the sieve more durable