I WONDER - How Small Are Cells?

Cells vary in size from one to 100 micrometers, similar to a single strand of hair. Unlike hair, cells are harder to see because they are like single dots, requiring a microscope for observation.

What is the range of sizes that cells can have?

• 1 to 10 micrometers

• 1 to 100 micrometers

• 10 to 100 micrometers

• 100 to 1000 micrometers

How is the size of a cell compared to a strand of hair?

• A cell is larger than a strand of hair.

• A cell is the same size as a strand of hair.

• A cell is smaller than a strand of hair.

• A cell is visible without any aid.

Why can we see strands of hair easily?

• Because they are in a line.

• Because they are transparent.

• Because they are very thick.

• Because they are colorful.

Why are cells harder to see compared to strands of hair?

• Cells are transparent.

• Cells are too large.

• Cells are too colorful.

• Cells are like single dots.

What tool is necessary to observe most cells?

• A telescope

• A camera

• A magnifying glass

• A microscope