Year 8 introduction to cell theory

​Learning intentions

​Cell theory: Key principles (all living things are made of cells, cells are the basic unit of life, all cells arise from pre-existing cells)

Use of microscopes: Types of microscopes (light, electron); parts of a microscope and their functions -

​success criteria

​know that cells make up all living things and the basic principles of cell theory

label the parts of a light microscope

use the light microscope to clearly view microorganisms in a prepared slide

cells

By Benjamin Graham

​🌱

Cell theory is a big idea in science that helps us understand living things. It tells us three important things:

1. All living things are made of cells.
   – That means you, your pet, trees, and even tiny bugs are all made of cells!

2. Cells are the basic building blocks of life.
   – Just like LEGO bricks build cool things, cells build plants, animals, and people.

3. All cells come from other cells.
   – New cells are made when old cells divide. It's kind of like how people come from other people!

---

​🧫 So, What Is a Cell?

A cell is the tiniest part of any living thing that can still do all the stuff life needs—like eating, growing, and making energy. Some living things, like bacteria, are just one tiny cell. Others, like humans, have trillions of them!

​words to know:
- microbiology
- Cell theory
- Multicellular
- Unicellular
- Microorganisms

Multiple Choice

The ___ is the basic unit of sturucture and function of organisms

• atom
• cell
• matter
• all other answers are correct

Multiple Choice

Which statement is a part of the cell theory?

• all cells come from preexisting cells
• bacteria are prokaryotic cells
• eukaryotic cells are complex
• humans are multicellular

Multiple Choice

The Cell Theory states...

• atoms create all matter
• living things evolve
• the cell is the backbone of all matter
• cells are the basic unit of structure and organization of organisms

Multiple Choice

Who looked at cork and named the cell?

• Robert Hooke
• Van Leeuwenhoek
• Robert Brown
• Francesco Redi

Multiple Choice

Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

Multiple Choice

The invention of the microscope made it possible for people to discover and learn about

• Plants
• Skin 
• Animals 
• Cells

Multiple Choice

A multicellular organism is made of

• one cell

• multiple cells

• unicellular cells

• there is no such thing as a "multicellular" organism

Multiple Choice

Which of the following scientists was the first to observe bacteria under a microscope?

• Anton van Leuwenhoek
• Matthais Schleiden
• Robert Hooke
• Theodor Schwann

​Cell theory
1. All living things are made of cells. – That means you, your pet, trees, and even tiny bugs are all made of cells!
2. Cells are the basic building blocks of life. – Just like LEGO bricks build cool things, cells build plants, animals, and people.
3. All cells come from other cells. – New cells are made when old cells divide. It's kind of like how people come from other people!

​Copy the bold parts into your notebooks

click on th elink below to complete the education perfect task

https://app.educationperfect.com/app/dashboard/homework/10992619