SA_vs_Volume

Flatworm

Pseudobiceros hankockanus

l

h

w

Surface Area
versus Volume

Use the buttons below to change the size of this flatworm. Watch how its external surface area (SA) changes compared to its internal volume (V). The larger an animal, the smaller the ratio of its surface area to internal volume (SA:V).

l

3

mm

w

1

mm

h

0.25

mm

SA

8

mm²

V

0.75

mm³

SA:V

10.7

1X

2X

10X

Back to module

Flatworm

Pseudobiceros hankockanus

l

3

mm

w

1

mm

h

0.25

mm

SA

8

mm²

V

0.75

mm³

SA:V

10.7

l

h

w

Surface Area versus Volume
Use the buttons on the left to change the size of this flatworm. Watch how its external surface area (SA) changes compared to its internal volume (V). The larger an animal, the smaller the ratio of its surface area to internal volume (SA:V).

1X

Back to module

2X

10X

Flatworm

Pseudobiceros hankockanus

l

h

w

Surface Area
versus Volume

Use the buttons below to change the size of this flatworm. Watch how its external surface area (SA) changes compared to its internal volume (V). The larger an animal, the smaller the ratio of its surface area to internal volume (SA:V).

l

6

mm

w

2

mm

h

0.5

mm

SA

32

mm²

V

6

mm³

SA:V

5.3

1X

2X

10X

Back to module

Flatworm

1X

Back to module

Pseudobiceros hankockanus

2X

l

6

mm

10X

w

2

mm

h

0.5

mm

SA

32

mm²

l

V

6

mm³

h

SA:V

5.3

w

Surface Area versus Volume
Use the buttons on the left to change the size of this flatworm. Watch how its external surface area (SA) changes compared to its internal volume (V). The larger an animal, the smaller the ratio of its surface area to internal volume (SA:V).

Flatworm

Pseudobiceros hankockanus

l

h

w

Surface Area
versus Volume

Use the buttons below to change the size of this flatworm. Watch how its external surface area (SA) changes compared to its internal volume (V). The larger an animal, the smaller the ratio of its surface area to internal volume (SA:V).

l

30

mm

w

10

mm

h

2.5

mm

SA

800

mm²

V

750

mm³

SA:V

1.07

1X

2X

10X

Back to module

Flatworm

1X

Back to module

Pseudobiceros hankockanus

2X

l

30

mm

10X

w

10

mm

h

2.5

mm

SA

800

mm²

l

h

V

750

mm³

SA:V

1.07

w

Surface Area versus Volume
Use the buttons on the left to change the size of this flatworm. Watch how its external surface area (SA) changes compared to its internal volume (V). The larger an animal, the smaller the ratio of its surface area to internal volume (SA:V).