ASTRA Science Kit Session
with QR codes
for some
questions?
OLDEST fossil.
a plant
or an animal?
related to star fish.
They are living fossils.
holding?
or, in this case, dinosaur pooh!
related to this stone?
tiny bacteria
polluted the atmosphere with oxygen.
Toxic for most bacteria then alive!
a precious stone?
diamonds and rubies?
is known for forming
gigantic geodes?
Amethyst again!
The Empress of Uruguay,
is the largest known
Amethyst Geode
in the world.
Which 2 rocks are
most common
in oceanic CRUST?
on the surface of Mars and
other rocky planets.
and Mercury—
are covered with basalt,
as is the ocean floor of Earth.
is the most common rock
in continental crust?
is composed mostly of different types of
granites.
is used to make
surgical knives
sharper than steel?
for eye surgery!
like any glass knife,
can have a cutting edge many times sharper than high-quality steel surgical scalpels
FLOATS?
contains the mineral
magnetite?