Name: _____________________________________________________________ Date: __________Period: __________DIRECTIONS:

1. GOOGLE “PHET NATURAL SELECTION”

2. CLICK FIRST LINK.

3. CLICK .

BACKGROUND ACTIVITIES:

ONE IS A LONELY NUMBER

1. ALLOW THE GIZMO TO RUN. WHAT EVENTUALLY HAPPENED? ________________________________________________

2. WHY DO YOU THINK THE BUNNY DIED? ________________________________________IT IS GOOD TO HAVE FRIENDS

1. CLICK “RESET ALL” IN THE BOTTOM CORNER OF THE WINDOW.2. IN THE LOWER LEFT CORNER OF THE ANIMATION, CLICK “ADD A FRIEND”.

3. ALLOW THE ANIMATION TO RUN AND RECORD THE RESULTS. _________________________________________________

4. IS THIS REALISTIC? ______ WHY? / WHY NOT? _________________________________________________________SELECTION MONDAY

1. CLICK “RESET ALL” IN THE BOTTOM CORNER OF THE WINDOW.2. IN THE LOWER LEFT CORNER OF THE ANIMATION, CLICK “ADD A FRIEND”.3. LOCATE “SELECTION FACTOR” AND SELECT FOOD.4. WATCH THE POPULATION FOR A HANDFUL OF GENERATIONS. DESCRIBE HOW THE POPULATION REACTS.

EAT ME

1. CLICK “RESET ALL” IN THE BOTTOM CORNER OF THE WINDOW.2. IN THE LOWER LEFT CORNER OF THE ANIMATION, CLICK “ADD A FRIEND”.3. ONCE THE POPULATION HAS REACHED APPROXIMATELY 15-20 BUNNIES, LOCATE “SELECTION FACTOR” AND SELECT WOLVES.4. DESCRIBE WHAT HAPPENS TO THE POPULATION OF BUNNIES.

TEENAGE MUTANT NINJA BUNNIES

1. CLICK “RESET ALL” IN THE BOTTOM CORNER OF THE WINDOW.

2. IN THE LOWER LEFT CORNER OF THE ANIMATION, CLICK “ADD A FRIEND”.3. LOCATE “ADD MUTATION” AND SELECT ONE OF THE MUTATIONS LISTED.

4. DOES THE MUTATION SHOW UP IMMEDIATELY? _____________ WHY? ______________________________________

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5. DOES YOUR MUTATION EVER TAKE OVER THE ENTIRE POPULATION OF BUNNIES? ________ WHY? /WHY NOT? ____________

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PhET – Natural

Name: _____________________________________________________________ Date: __________Period: __________

CHALLENGES :

1. BELOW ARE THREE CHALLENGES YOU SHOULD ATTEMPT TO ACCOMPLISH BY CHANGING THE VARIOUS PARAMETERS WITHIN THE LAB.2. IN THE MUTATION, SELECTION FACTOR, AND ENVIRONMENT COLUMNS YOU SIMPLY RECORD THE SETTINGS FROM THE LAB AFTER YOU GET

THE CORRECT CHALLENGE OUTCOME.3. IN THE OBSERVATIONS COLUMN, RECORD ANY SPECIAL PROCEDURES (WAITING A FEW GENERATIONS, CHANGING SOMETHING QUICKLY,

ETC.) YOU HAD TO FOLLOW IN ORDER TO GET THE DESIRED RESULT.

CHALLENGE #1 FIND A WAY TO MAKE ONLY BUNNIES WITH BROWN FUR TAKE OVER THE WORLD.

MUTATION SELECTION FACTOR ENVIRONMENT OBSERVATIONS

CHALLENGE #2 FIND A WAY TO MAKE 200 BUNNIES WHEN FOOD IS A SELECTION FACTOR.

MUTATION SELECTION FACTOR ENVIRONMENT OBSERVATIONS

CHALLENGE #3 FIND A WAY TO HAVE BUNNIES WITH WHITE FUR TAKE OVER THE WORLD WHEN YOU HAVE WOLVES AS SELECTION FACTOR

MUTATION SELECTION FACTOR ENVIRONMENT OBSERVATIONS

CONCLUSION: 1. SIMULATIONS ARE USEFUL FOR UNDERSTANDING HOW NATURAL PROCESSES WORK BUT ARE NOT ALWAYS REPRESENTATIVE OF THE REAL

WORLD. HOW DOES THIS SIMULATION DIFFER FROM WHAT MIGHT HAPPEN IN A TRUE ECOSYSTEM? ___________________________

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_______________________________________________________________________________________________2. WHAT HAPPENS TO ANIMALS THAT CANNOT COMPETE AS WELL WITH OTHER ANIMALS IN THE ENVIRONMENT?

_____________

3. EVENTUALLY WHAT HAPPENS TO THOSE ADAPTATIONS THAT DO NOT HELP THE ANIMAL COMPETE WITH OTHER ANIMALS? ( FOR

EXAMPLE BROWN FUR IN ARCTIC ENVIRONMENT)

Name: _____________________________________________________________ Date: __________Period: ________________________________________________________________

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