The archeologist carefully excavated bones at a dig site, filling the hole with plaster to harden. A volcano erupted, covering a nearby city with lava and ash from its powerful eruption. The archeologist used plaster to harden in the excavated hole at the archaeological dig site.

1. The Best Way 3
Unit 4: Buried in Time

2. archeologist (n)
The archeologist carefully
excavated the bones at the
dig site.

3. excavate (v)
The archeologist carefully
excavated the bones at the
dig site.

4. dig (site) (n)
The archeologist carefully
excavated the bones at the
dig site.

5. plaster (n)
The archeologist filled
the hole with plaster
and waited for it to
harden.

6. dig (v)
(dig-dug-dug)
The workman dug a large
hole in the ground.

7. volcano (n)
The volcano erupted lava
and ash.
The eruption was very
powerful.

8. ash (n)
Ash from the volcano
covered the city below.

9. lava (n)
Lava from the volcano
covered the city below.

10. -en (suffix)
Adj + en = verb
light + en = lighten (Ex. Valerie lightened the cloth in the washing machine)
hard + en = harden (Ex. The plaster hardened in the hole.)
soft + en = soften (Ex. You should soften the meat before you cook it.)
wide + en = widen (Ex. The engineer widened the bridge.)
sharp + en = sharpen (Ex. I need to sharpen my pencil.)
Noun + en = verb
strength + en = strengthen (Ex. The body builder strengthened his body.)
length + en = lengthen (Ex. He lengthened the table by 1m.)