astrophisics
the periodic table
earth science
animals
100

what is the farthest planet from the sun

neptune

100

how many rows are in the periodic table

7

100

what is the outer layer of the earth called 

crust

100

what is a baby dog called

puppy

200

who was the second person to step on the moon

buzz aldren

200

how many major groaps are on the periodic table

18

200

what is the middle of the earth called

the mantle

200

what is the fastest land animal

cheta

300

what two contrys competed in the space race

the solviet union and america

300

how many elements are in t he periodic table

118

300

how much of the earth is water

70%

300

where do kangaroos hold there babys 

their pouches

400

this astrophisisist born on october 8, 1958 won many awards including the NASA destiguished public survice medal in 2004.

neil degrass tyson

400

titanium is classified on the peridic table as

transiton metal

400

how many contanents are on the earth

7

400

what is a baby bear called 

a cub

500

what galexy is the earth located in

the milkey way galexy

500

what is atomic number 1 on the periodic table

hydrgen

500

how many earths can fit in the sun

1.3 million

500

what is the fastest animal in the world

Peregrine Falcon