1
To be squashed between two things
sandwich
To shine with a light that seems to move a little
shimmer
The science of fossils.
paleontology
To say something in a low or hard-to-hear voice
mutter
Someone who has deep knowledge and skill in an area, usually from long experience
expert
a feature of something/someone
characteristiic
The science of matter
chemistry
Bleak and lifeless
barren
To make sudden, unsteady movement
lurch
to gently touch or push
nudge
Any substance the occupies space and has mass.
Matter
a movement, usually of the hand or head, to express meaning or point to something.
Gesture
the amount of matter in a substance or object.
mass