Fireworks make bright colors and loud noises as they ______.
explode
Grandpa and I went to a _____ park.
local
Wood is ______, but water and air are not.
solid
We visited an _____ on our vacation.
island
We dug into the _____ to plant some lettuce.
earth
This hill is _____ and hard to climb.
steep
I looked at the rock to learn about its _______.
properties
The _______ volcano was about to erupt.
active