planets
books
harry potter
the ocean
president
100

this planet was discovered in 1849 its largest moon triton was discovered less than a month later

neptune

100

who is the author of "the screwtape letters"

c.s.lewis

100

who is the author of harry potter

j.k.rowling

100

what do you call a group of fish

a school of fish

100

what is americas presiednt

Trump

200

hellas an impact crater on this red planet is over 900 miles wide

mars

200

how many books did L.Ron Hubbard

1084

200

how many harry potter books are there

7

200

how many oceans are in the western hemisphere

5

200

who was the first president of the us

George Washington

300

despite being closest to the sun this planet may have some ice in its polar regions

mercury

300

who published the most books 

L.Ron Hubbard

300

how many pages are in the first harry potter book

301

300

how many sharks are there in the world

440

300

how many presidents has the us had

44

400

seen from space this planet appears as a blue ocean sphere marked with brown green and white areas

earth

400

who is the author of "children of tomorrow"

Rav

400

how many books did j.k.Rowling write? 

at least 28

400

how many species of fish are there

33,600

400

who was the 5th president of the us

james monroe

500

who is the author of "the secrets of the eternal book"

Semion Vinokur

500

how many pages are in the 5th harry potter book 

870

500

why is the ocean salty

salt in the ocean comes from rocks on land.the rain that falls on land contains some dissolved carbon dioxide from the surrounding air.this causas the rainwater to be slightiy acidic due to carbonic acid (wich forms from carbon dioxide and water)

500

who was israels 7th president

Reuven rivlin

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