MAKE A PREDICTION

How does camouflage affect survival rates?

http://animals.pppst.com/banner_camouflage.gif

SET UP• Count out 50 black beads and place in box

• Count out 50 “other” color beads and place in box

• Fill in the “AT START” columns on your data sheet.

PERCENT OF TOTAL = ___# of beads__ X 100 total beads in box

FEEDING RULESKeep your eyes OPEN!

Pick the FIRST ONE you SEE!

NO picking your favorite color!

Only pick ONE AT A TIME!

Swirl slowly, choose, repeat until you remove 20 beads.http://www.feebleminds-gifs.com/ani5.html

AFTER 1ST FEEDING• Calculate number of black beads IN BOX

• Calculate number of “other” color beads IN BOX

• Fill in “AFTER 1ST FEEDING” column on data sheet.

PERCENT OF TOTAL = ___# of beads_ X 100 total beads in box

REPRODUCE

Number of black beads in box ÷ 2Add this many black beads to box

Number of “other” color beads in box ÷ 2Add this many “other” color beads to box

Round UP for odd numbers of beads.

Fill in “AFTER 1st REPRODUCTION” column on data sheet.

http://greenwood.alpinedistrict.org/Root%20Greenwood%20/images/pictures/Mom,%20Dad%20&%20Baby.jpghttp://pro.corbis.com/images/42-18867237.jpg?size=67&uid=%7B21E60102-7098-4CA2-B76E-6ACC29D9CA18%7D

FEED AGAINKeep your eyes open!

Pick the FIRST ONE you SEE!

NO picking your favorite color!

Only pick ONE at a time!

Swirl slowly, choose, repeat until you remove 20 beads.http://www.feebleminds-gifs.com/ani5.html

AFTER 2nd FEEDING• Calculate number of black beads IN BOX

• Calculate number of “other” color beads IN BOX

• Fill in “AFTER 2nd FEEDING” column on data sheet.

PERCENT OF TOTAL = ___# of beads_ X 100 total beads in box

REPRODUCEAGAIN

Number of black beads in box ÷ 2Add this many black beads to box

Number of “other” color beads in box ÷ 2Add this many “other” color beads to box

Round up for odd numbers of beads.

Fill in “AFTER 2nd REPRODUCTION” column on data sheet.

http://greenwood.alpinedistrict.org/Root%20Greenwood%20/images/pictures/Mom,%20Dad%20&%20Baby.jpghttp://pro.corbis.com/images/42-18867237.jpg?size=67&uid=%7B21E60102-7098-4CA2-B76E-6ACC29D9CA18%7D

FILL IN CLASS DATA SHEETon projector with your group’s data

Copy the class data onto YOUR Class data sheet