This Grade 3 famous fossils worksheet introduces trilobites, dinosaur bones, amber insects, fern-filled coal, and mammoth tusks. Students practice Grade 3 science skills by correcting grammar errors, filling in key vocabulary words, and deciding which statements about extinct creatures are true or false. Gentle hints and quick why notes help children remember each fossil type and the kind of animal or plant it once represented in Earth's long history.
Style:
Fossils and Evidence of Past Life
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
A trilobite were a sea creature with a hard shell in Grade 3 science books.
Rewrite: A trilobite was a sea creature with a hard shell in Grade 3 science books.
2. Fix the sentence:
Dinosaur bones is often found inside sedimentary rock in Grade 3 science.
Rewrite: Dinosaur bones are often found inside sedimentary rock in Grade 3 science.
3. Fix the sentence:
Amber sometime traps insects that lived long ago in Grade 3 lessons.
Rewrite: Amber sometimes traps insects that lived long ago in Grade 3 lessons.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. In Grade 3 science, hardened tree sap that can trap ancient insects is called amber.
2. In Grade 3 science, trilobites were ocean animals with segmented bodies and are now extinct.
3. In Grade 3 science, huge mammoth tusks have been found frozen in icy ground.
4. In Grade 3 science, black coal often contains fossil fern leaves from ancient forests.
Part C: True or False?
Read each statement. Circle True or False.
1. In Grade 3 science, trilobites are still alive today in most oceans around the world.
True False
2. In Grade 3 science, insects trapped in amber can be preserved for millions of years.
True False
3. In Grade 3 science, dinosaur bones are usually found inside smooth, shiny glass.
True False
Fossils and Evidence of Past Life
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
A trilobite were a sea creature with a hard shell in Grade 3 science books.
Rewrite: A trilobite was a sea creature with a hard shell in Grade 3 science books.
2) Fix the sentence:
Dinosaur bones is often found inside sedimentary rock in Grade 3 science.
Rewrite: Dinosaur bones are often found inside sedimentary rock in Grade 3 science.
3) Fix the sentence:
Amber sometime traps insects that lived long ago in Grade 3 lessons.
Rewrite: Amber sometimes traps insects that lived long ago in Grade 3 lessons.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) In Grade 3 science, hardened tree sap that can trap ancient insects is called amber.
2) In Grade 3 science, trilobites were ocean animals with segmented bodies and are now extinct.
3) In Grade 3 science, huge mammoth tusks have been found frozen in icy ground.
4) In Grade 3 science, black coal often contains fossil fern leaves from ancient forests.
★ Part C: True or False?
Read each statement. Circle True or False.
1) In Grade 3 science, trilobites are still alive today in most oceans around the world.
True
False
2) In Grade 3 science, insects trapped in amber can be preserved for millions of years.
True
False
3) In Grade 3 science, dinosaur bones are usually found inside smooth, shiny glass.
True
False
Ready to Practice?
Complete each section carefully.
10 Questions
15-20 minutes
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