29
Lesson 29 of 84 · Evolution
ExperimentThe Fossil Record and Evolution (Part 2)
What You'll Learn
The fossil record provides evidence for evolution by showing how organisms have changed over time. Transitional fossils show features of both ancestral and descendant species.
Key Words
- dominant
- recessive
- mutation
Materials Needed
- onion skin
- iodine stain
- paper
- colored pencils
Safety First
- Wash hands after handling materials.
- Be careful with scissors — ask an adult for help if needed.
Steps
Step 1 — Read
Read and learn: The fossil record provides evidence for evolution by showing how organisms have changed over time. Transitional fossils show features of both ancestral and descendant species.
Step 2 — Do
Follow the procedure carefully, step by step.
Step 3 — Observe
Use your senses (except taste) to describe what you notice.
Step 4 — Record
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What provides evidence for evolution?