80
Lesson 80 of 84 · Heredity
ExperimentGenes and Traits (Part 5)
What You'll Learn
Natural selection is the process where organisms with traits better suited to their environment survive and reproduce more successfully. Over time, this drives evolution.
Key Words
- DNA
- gene
- chromosome
Materials Needed
- index cards
- markers
- ruler
Safety First
- Use materials only as directed in the experiment.
- Keep small objects away from young children.
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
Steps
Step 1 — Read
Read and learn: Natural selection is the process where organisms with traits better suited to their environment survive and reproduce more successfully. Over time, this drives evolution.
Step 2 — Do
Conduct the experiment by following the instructions.
Step 3 — Observe
Look for patterns in your observations.
Step 4 — Record
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3What is natural selection?