💨 The Stinky & Sweet Saga of Sully the Sulfur Atom

Multiple Choice

Why is sulfur considered both 'stinky' and 'sweet' in nature?

• Because it can be found in both hydrogen sulfide gas and important proteins

• Because it is only found in rotten eggs

• Because it is always harmful to living things

• Because it never interacts with microbes

Multiple Choice

What is the initial form of sulfur released into the atmosphere during a volcanic eruption in the sulfur cycle?

• Sulfur dioxide (SO₂)

• Sulfuric acid (H₂SO₄)

• Elemental sulfur (S)

• Hydrogen sulfide (H₂S)

Multiple Select

Which of the following processes are involved in the microbial transformation of sulfur in lakes?

• Sulfate reduction

• Sulfide oxidation

• Photosynthesis

• Mineralization

Drag and Drop

Sulfur becomes part of the organic cycle when it is absorbed by ___ in the lake ecosystem.

Placeholder

Drag these tiles and drop them in the correct blank above

plants

fish

bacteria

rocks

Multiple Choice

What is the process called when decomposers break down the duck's organic matter and release sulfur from its proteins?

• Mineralization

• Photosynthesis

• Oxidation

• Sulfate reduction

Multiple Choice

What are two important roles that sulfur plays in the environment, as described in Sully's story?

• Sulfur helps form important proteins and is part of hydrogen sulfide gas.

• Sulfur is only found in rocks and minerals.

• Sulfur is used only in making fertilizers.

• Sulfur is not important for living things.

Drag and Drop

Describe sulfur's journey from lake sediments, through bacterial processes, into the water column, and eventually into the atmosphere as ​

Placeholder

gases

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sulfur

oxygen

nitrogen

carbon dioxide

Multiple Choice

Which reservoir acts as the largest long-term storage pool for sulfur, and in what form is sulfur primarily found there?

• Lithosphere; Solid S and Sulfide/Sulfate minerals

• Hydrosphere; Dissolved Sulfate

• Atmosphere; Sulfur Dioxide and Hydrogen Sulfide

• Hydrosphere; Dissolved Oxygen