Click below to jump to the video demo of each sign.

• ecosystem
• extract
• filter (version 1)
• filter (version 2)
• fumigate
• gas
• horizon (soil)
• hypothesis

How to sign: "ecosystem"

Can't see the embedded video above? View the sign for "ecosystem" video on YouTube.

How to sign: "extract"

Can't see the embedded video above? View the sign for "extract" video on YouTube.

How to sign: "filter" (version 1)

Can't see the embedded video above? View the sign for "filter" (version 1) video on YouTube.

How to sign: "filter" (version 2)

Can't see the embedded video above? View the sign for "filter" (version 2) video on YouTube.

How to sign: "fumigate"

Can't see the embedded video above? View the sign for "fumigate" video on YouTube.

How to sign: "gas"

Can't see the embedded video above? View the sign for "gas" video on YouTube.

How to sign: "horizon" (soil)

Can't see the embedded video above? View the sign for "horizon" (soil) video on YouTube.

How to sign: "hypothesis"

Can't see the embedded video above? View the sign for "hypothesis" (soil) video on YouTube.