Lesson 8 of 84 · Heredity
Lesson⭐ 30 XPNatural Selection: Survival of the Fittest
Natural Selection: Survival of the Fittest.
🎯 Your mission
Master the concept. Use it tomorrow.
⚡ The twist
Nature loves to surprise the careful watcher.
Mind = Blown
🔬 The more you look, the more nature shows you.
Make a hypothesis first
Before you start: write down what you think will happen, and why.
What You'll Learn
Adaptations develop over many generations through natural selection. Structural adaptations (like thick fur), behavioral adaptations (like migration), and physiological adaptations (like venom production) all help survival.
Key Words
- mitosis
- trait
- dominant
Steps
Read the introduction and identify the main idea of this lesson.
Research one genetic disorder. Create an infographic showing its cause, symptoms, and how it is inherited.
Observe what happens and describe it in detail.
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What is selective breeding?
Where you see this in real life
This shows up in your everyday life more than you'd think.
Stretch Challenge
Try this in real life this week.
Try one experiment in real life this week — even a tiny one.
For the dinner table
“What's the most surprising thing you learned today?”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Heredity for 6th Grade
Get the full Heredity track as a printable PDF — all lessons, worksheets, and answer keys.