1. Classification-Dichotomous keys
What is a dichotomous key?
A useful tool which uses a sequence of steps to classify and identify a living or non-living object
Classifies objects according to whether a particular characteristic is present or absent
Can be represented in written or graphical form

2. Written dichotomous key
1a. Object is living ………………………………. Go to 3
b. Object is non-living ………………………..….. Go to 2
2a. Object is a hard mineral …………………….. ROCK
b. Object is made of tiny pieces of rock
and organic matter ……………………………… SOIL
3a. Organism is a plant …………………………….. Go to 4
b. Organism is an animal …………………………. Go to 5
4a. Flowers of the plant have petals ………… DAISY
b. Flowers of the plant have no petals ……. GRASS
5a. Animal has wings ………………………………… MAGPIE
b. Animal has no wings ……………………………. SNAIL

3. Graphical dichotomous key
organisms
plant
grain
rye
wheat
animal
fish
trout
reptile
snake
bird
sparrow