the key topic vocabulary to
do with Earth and Beyond.
B = Blackhole
C = Comet
D = Dwarf Planets
E = Earth
F = Force
G = Gravity
H = Helium
I = Interplanetary Dust
J = Jupiter
K = Kuiper Belt
L = Lythisea
M = Micronesia
N = Neptune
O = Orbit
P = Pluto
Q = Quora
R = Rusty Planet
S = Saturn
T = Titan
U = Uranus
V = Venus
W = Wavelength
X = Xena
Y = Yellow, Red and Orange Sun
Z = Zero Gravity
The challenge for me was to think of words that started with some of these letters.