Grade 10.

• bequest
• bereavement
• bereft
• beryllium
• bewilderedness
• bey
• bigamist
• bigamy
• bimbo
• bimbos
• bioaccumulation
• biochemist
• biochemistry
• bioelectricity
• biogeochemical
• biopsy
• bios
• biotech
• biotechnologies
• blameworthiness