The core of a pencil is made from a very soft rock called ____.
graphite
Light weight rocks can be ______ lifted.
easily
True / False: "Light" and "heavy" are words used to describe the texture of rocks.
False: "Light" and "heavy" are words used to describe the weight
What texture does this rock have?
Glassy texture
Coarse-grain texture rocks have dots that we can _____ with the naked eye.
see
Rocks have ______ characteristics.
different
A big rock is usually ____ than a small rock.
heavier
We know a rock has a ____-grained texture because we need a magnifying glass to se the grains.
fine
Chalk is an example of a ___ ___ rock.
very soft
We can scratch very soft rocks with our ____.
fingernail
What colour are these rocks?
white
We cannot lift ___ weight rocks.
heavy
Rocks can be a __________ of colour.
mixture
A rock with ____ -grained texture has a rough surface.
coarse
Rocks with no grain have a _____ texture.
glassy
Some rocks are hard and they can ____ glass.
scratch
True / False: A rock is a living thing.
False
What 3 words can be used to describe the weight of rocks?
light weight / medium weight / heavy weight
A _____ weight rock can be easily lifted with one hand.
light
Rocks with _____ can be _____ broken along these lines.
cleavage / easily
A rock with a fine-grained texture has a _____ surface.
smooth
___ rocks can scratch glass.
Hard
what colour are these rocks?
Gray
Yes / No: Does this rock have cleavage?
Yes