Subjectastronomy1body and care0code0drinks0food0language1maths3music0science6signals0sport0units1vehicles0
THE SOLAR SYSTEM
eight planets · size, distance, year and day
Free
GREEK ALPHABET
24 letters · names and where science uses them
$1.50
NUMBERS 1 TO 100
the hundred chart · primes picked out in colour
Free
MULTIPLICATION TABLE
1 to 12 · colour intensity = size of the product
Free
ROMAN NUMERALS
seven symbols · ones, tens, hundreds · years
$1.50
MAMMALS IN TIME
from the first synapsid to us · 320 million years on one axis
Free
VERTEBRATES IN TIME
when each group appeared · five hundred million years on one axis
Free
BASIC PHYSICS FORMULAS
fifteen formulas · every letter explained beneath it
Free
ANIMALS
the main branches — from comb jellies to chordates · who is actually related to whom
Free
THE TREE OF LIFE
who sits inside whom · where animals, fungi and plants actually are
$1.50
VERTEBRATES
from lamprey to bird · and why "fish" and "reptiles" are not groups
Free
SI PREFIXES
from quetta to quecto · twenty multipliers
$1.50