Biology
Two hundred thousand sperm that make an entrance
would fit within the period of a _________________.
sentence
From Saturn's rings, the Earth appears to be,
a speck of dust, so small it's hard to _______.
see
Atomically, each year you're made anew:
fresh atoms, ninety-eight percent, of _____.
you
Some flowers have a bullseye for a bee,
with ultraviolet hues our eyes can't ______.
see
Bob Berman blew my mind with what he wrote,
describing what would happen if we rode
a photon at light speed: we'd be aware
that time had stopped, and we were _____________.
everywhere
About nine hundred times, as life begins,
till when it ends, we humans change our _______.
skins
Volcanoes, while erupting, make a fuss
that leads to rocks we know as __________.
igneous
A law that Newton found declares each action
shall have an equal — opposite — _________.
reaction
At times, between the lines, within a story,
you read a hidden meaning, ___________.
allegory
It's not that time would only seem to shrink
as you move miles faster than a blink,
and not that space would only seem to shrink
as you increase your speed to light speed's brink,
and not that you should go and see a shrink
for sense of timelessness in which you sink:
at light speed it's not simply what you'd feel:
time stopping, you'd be everywhere, for _______.
real
The weight of soil where a tree has grown
remains unchanged, because, as has been shown,
the substance of a tree, with leaves or bare,
forms out of what's invisible, the _________.
air
On plates you may place health foods like a tonic,
but Earth's plates have a motion that's ___________.tectonic
An apple fell on Newton's head, and he
came up, when it fell down, with _________.
gravity
The butterfly effect means one can form,
from tiny flapping wings, a giant _______.
storm
The temperatures that warm us or that freeze,
the changes that we feel through their degrees,
are caused by things much tinier than seeds:
by atoms changing how they move; their ________.
speeds
and roughly twenty layers of skin are _____.
dead
Though liquid water on the Earth is ample,
our planet seems to be a rare example.
Outside a narrow spectrum of degrees,
it will evaporate, or it will ___________.
freeze
Light doesn't travel straight as it may seem,
since gravity bends paths of any _________.
beam
You'd never know that air can weigh so much
as it's not something you can see our touch.
It's pressure though accumulates from far,
as if your head and shoulders held a ______.
car
Before it can arrive to us in minutes,
a photon from the sun must push within it
ten thousand years or more until it's done
and travels from the surface of the ______.
sun
If Earth were one day old, humanity
would not appear upon, above, or in it,
for very long, but show up finally
the last second of the final __________.
minute
If we could travel to the nearest star,
as fast as jets, the trip would be so far,
we'd have to freeze ourselves, outlive our peers,
and be awoken in five million __________.
years
Go at the speed of light to not be late,
but slow, and time, like pupils, will _______.
dilate
Computers talk with numbers we don't see,
their language ones and zeroes, ____________.
binary
Earth's negativity is balanced by
the positivity that's in the sky.
To keep them even as their difference spikes,
one hundred times a second, lightning ________.
strikes