πŸ“š Grade 9 Science: Lessons B.E.S πŸ“š

πŸ“Š Score: 0 / 0

Lessons 1.20: Science: Biology: cells, genetics, and ecosystems.

Lesson 1.1: Introduction to Cells

Cells are the basic unit of life, and all living things are made of cells.

Example: "A human is made of trillions of cells, while bacteria are made of just one cell."

Quiz: What is the basic unit of life?

Watch Video

Lesson 1.2: Prokaryotic vs. Eukaryotic Cells

Prokaryotic cells (like bacteria) do not have a nucleus, while eukaryotic cells (like human cells) do.

Example: "Your body is made of eukaryotic cells, but bacteria are made of prokaryotic cells."

Quiz: What type of cell has a nucleus?

Watch Video

Lesson 1.3: DNA and Genetics

DNA contains genetic instructions that determine traits.

Example: "You inherit half of your DNA from your mother and half from your father."

Quiz: What carries genetic instructions in a cell?

Watch Video

πŸ”’ Members Only

You have reached the limit of free lessons. To unlock more lessons:

Become a Member

Already a member? Sign In