Criterion 1:

• There are pictures drawn for all 12 fossils.
• Descriptions, however weak, must accompany the pictures.

Criterion 2:

• Pictures for all 12 fossils must be drawn.
• At least half of the fossils have good descriptions or have used an outside source for information.

Criterion 3:

• Pictures for all 12 fossils must be drawn.
• Over half of the fossils have good descriptions or have used an outside source for information.

Criterion 4:

• Pictures for all 12 fossils must be drawn.
• The descriptions must be in the students' own words, not just copied from a reference text.
• The fossils must have detailed descriptions or have used an outside source for information.