Questions with the keyword 'blood'

• why are our veins blue and our blood red. by chiara728 to Ed, Sam, Steve Comments: (No comments so far )
• Why is our blood red? I know about red blood cells, but why is our blood red though? by sofiegrey to Ed, Katie, Sam, Steve, Vera Comments: (so far, 3s comments )
• Is our blood actually yellow? If it is, why? by maggie246 to Ed, Katie, Sam, Steve, Vera Comments: (No comments so far )
• what colour is blood inside our body by chantalle and 1 other. to Ed, Katie, Sam, Steve, Vera Comments: (No comments so far )