This Grade 3 fossil detective worksheet challenges students to analyze clues just like working scientists. Four multiple-choice questions ask children to identify fossils such as ammonites and trilobites, pick the past environment they reveal, and link sharp teeth to modern sharks. Five fill-ins deepen Grade 3 vocabulary with ecosystem, relative, extinct, and more, helping learners connect fossil shapes and rock layers to bigger ideas about Earth's changing history.
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Fossils and Evidence of Past Life
Part A: Multiple Choice
Circle the best answer for each question.
1. In Grade 3 science, a coiled shell fossil in gray limestone most likely comes from which animal group?
A) Ancient ocean ammonites
B) Desert spiders
C) Flying dinosaurs
D) Giant ferns
2. In Grade 3 science, a fossil leaf with long veins found in coal probably lived in what place?
A) An icy tundra
B) A warm, wet swamp
C) A sandy desert
D) A deep ocean
3. In Grade 3 science, a sharp triangle tooth fossil the size of a hand most likely came from which modern relative?
A) A butterfly
B) A robin
C) A shark
D) A snail
4. In Grade 3 science, a trilobite fossil tells a paleontologist the rock formed in which environment?
A) High mountain peak
B) Dry desert dune
C) Ancient shallow sea
D) Hot volcanic lava
Part B: Fill in the Blank
Write the correct answer on each line.
1. In Grade 3 science, a fossil's shape tells scientists what the animal ate and how it lived.
2. In Grade 3 science, finding many different fossils in one layer shows that area had a rich ecosystem.
3. In Grade 3 science, the oldest fossils are usually found in the deepest rock layers.
4. In Grade 3 science, a living species whose ancestors appear as fossils is called a modern relative.
5. In Grade 3 science, a fossil that is no longer found alive anywhere on Earth is extinct.
Fossils and Evidence of Past Life
★ Part A: Multiple Choice
Circle the best answer for each question.
1. In Grade 3 science, a coiled shell fossil in gray limestone most likely comes from which animal group?
A) Ancient ocean ammonites
B) Desert spiders
C) Flying dinosaurs
D) Giant ferns
2. In Grade 3 science, a fossil leaf with long veins found in coal probably lived in what place?
A) An icy tundra
B) A warm, wet swamp
C) A sandy desert
D) A deep ocean
3. In Grade 3 science, a sharp triangle tooth fossil the size of a hand most likely came from which modern relative?
A) A butterfly
B) A robin
C) A shark
D) A snail
4. In Grade 3 science, a trilobite fossil tells a paleontologist the rock formed in which environment?
A) High mountain peak
B) Dry desert dune
C) Ancient shallow sea
D) Hot volcanic lava
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) In Grade 3 science, a fossil's shape tells scientists what the animal ate and how it lived.
2) In Grade 3 science, finding many different fossils in one layer shows that area had a rich ecosystem.
3) In Grade 3 science, the oldest fossils are usually found in the deepest rock layers.
4) In Grade 3 science, a living species whose ancestors appear as fossils is called a modern relative.
5) In Grade 3 science, a fossil that is no longer found alive anywhere on Earth is extinct.
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9 Questions
12-18 minutes
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