Wood_video1

Speaking of lumber we often think of …

• solid wood

• MDF

• leaves

• trees

Softwood comes from …

• deciduous trees

• conifer trees

• coniferous

• deciduous

Hardwood comes from …

• deciduous trees

• deciduous

• conifer trees

• conifer

Oak and maple are …

• deciduous trees/ hardwood

• conifer trees/ softwood

• exotic trees

• rare trees

Balsa is …

• deciduous trees/ hardwood

• conifer trees/ softwood

• conifer trees/ hardwood

• deciduous trees/ softwood

7 … have needles and cones

• Conifer trees

• Deciduous trees …

• Balsa trees

• Maples, oaks

Dimensional lumber means boards that …

• have been sanded

• have been dried

• have been cut and dried

• have been sanded and painted

9 All solid wood can …

• expand

• contract

• expand and contract

• stay intact

During rainy months boards will …

• draw in moisture and expand

• lose moisture and contract

• rot

• dry up

Pine and Douglas fir are …

• deciduous trees/ hardwood

• deciduous trees/softwood

• conifer trees/ hardwood

• conifer trees/ softwood