Why do bruises change color?

Watch the video and answer these questions:


  1. List all the colors a bruise goes through and explain the cause for each color.
  2. Why is urine yellow?
  3. Why does a bruise move downwards?
http://kids.britannica.com/comptons/art-168848/A-purple-bruise-is-fading-to-yellow-due-to-formationsource

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.