Microscopes: How they work. How cell works in order to know each part.
Learning Objective
At the end of this lesson, you will be able to identify microscopes and explain their parts and how they work.
Lo: to identify what a microscope is and how they work.
Memory time:
a) Identify the name of the microscope you see with:
a) eye lens b) stage/clips c) eye piece
1
minute
00
second
Items in this lesson
Learning Objective
At the end of this lesson, you will be able to identify microscopes and explain their parts and how they work.
Lo: to identify what a microscope is and how they work.
Memory time:
a) Identify the name of the microscope you see with:
a) eye lens b) stage/clips c) eye piece
1
minute
00
second
How you use a microscope:
Eye lens
Arm
What do you already know about Microscopes?
This person is looking through the MICROSCOPE which it's main job is to make small things appear very big/zoomed in which case it's easier to see properly.
Microscopes makes the object look bigger as it zooms the object so it is enabled or probably to be seen more closer otherwise we wouldn't see it in details enough.
What Is a Microscope?
A microscope is a piece of object that just zooms the object that's on the stage.
Microscopes:
Microscopes are scientific instruments designed to magnify objects that are too small to be seen clearly with the naked eye. They work by using lenses—or in some modern instruments, beams of electrons or light—to enlarge fine details of tiny structures.Main Types of Microscopes
1. Optical (Light) Microscopes
These use visible light and glass lenses to magnify samples. They are the most common type found in classrooms and basic labs.
Compound microscopes use multiple lenses for high magnification.
Stereo/Dissecting microscopes give a 3D view of larger samples at lower magnification.
Chloroplasts and Photosynthesis
Chloroplasts are found in plant cells. They use sunlight, water, and carbon dioxide to make food via photosynthesis.
Animal vs. Plant Cells:
Plant Cells
Animal Cells
Have cell membranes, cell walls, and chloroplasts. Found in all plants.
Have cell membranes but no cell wall or chloroplasts. Found in animals, including humans.
Quick Recap
Cells are life’s building blocks! Can you name two parts of a plant cell that animal cells do not have?
🌿 Cell wall – A rigid outer layer that gives the plant cell structure and support.
🌱 Chloroplasts – The organelles that carry out photosynthesis to make food for the plant.
Cells life blocks
🌿 Cell Wall
The cell wall is a strong, rigid outer layer that surrounds the plant cell’s membrane.
It’s mostly made of cellulose.
Its main jobs are to:
Support and protect the cell
Help the plant keep its shape
Prevent the cell from bursting when it takes in water
Because of the cell wall, plant cells tend to look boxy or rectangular under a microscope.
🌱 Chloroplasts
Chloroplasts are green, oval-shaped organelles that contain chlorophyll, the pigment that absorbs sunlight.
Their key job is photosynthesis, meaning they:
Capture light energy
Use it to convert carbon dioxide and water into glucose (a sugar that serves as food)
Write down 3 things you learned in this lesson.
Microscopes makes things appear bigger.
Write down 2 things you want to know more about.
How it makes it bigger and how it works.
Ask 1 question about something you haven't quite understood yet.
Why can't you just use clear goggles?
