Lesson 3: Cells and Tissues

What invention made it possible for us to see cells?

• Telescope

• Microscope

• Kaleidoscope

What are the smallest units of life, or the body's building blocks?

• Cells

• Tissues

• Organs

• Systems

Cells come in all shapes and sizes

• True

• False

When cells die...

• they are replaced with new cells

• there are no more cells

What do you call a group of cells

• Tissue

• Skin

• Organs

How many types of tissue are there?

• 1

• 2

• 3

• 4

Is blood a tissue?

• Yes

• No

What is the messenger between your brain and body?

• Connective Tissue

• Muscle Tissue

• Nervous Tissue

Your skin is made up of

• Epithelial Tissue

• Muscular Tissue

What is the smallest microscopic building block of all living things?

• Blood

• Cells

• Tissues