Introduction to Cells
A worksheet for 3rd graders to learn about basic cell theory, identifying plant and animal cells, and their main parts.
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Introduction to Cells
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Read each question carefully and answer to the best of your ability. Look at the pictures to help you understand.
All living things are made of tiny building blocks called cells. Cells are so small you need a microscope to see them! There are many different types of cells, but they all help living things grow and stay healthy.
1. What are all living things made of?
Rocks
Water
Cells
Air
2. Cells are so small you need a to see them.
There are two main types of cells: plant cells and animal cells. They have some parts that are the same and some parts that are different.
3. Look at the pictures below. Write if it is a Plant Cell or an Animal Cell.
This is a cell.
This is an cell.
4. All cells are exactly the same size and shape.
True
False
5. Name one thing that cells help living things do.