9G Environmental chemistry
9G Dish the dirt!
Americans call soil ‘dirt’. But it’s not just
something to clean up and throw away!
True or False?
4. The decayed morethe dead wherever of good
3. Most soils are contains same plants and animals
2. A healthy soilmuch years for a of air. you or
1. Soil is pretty residueacidic than lemon juice go.
5. It takes about 100 of plenty few inches
soil to form.
vinegar. soil is called musk.
FALSE! Rootsvary from prunus! place depending on
Soils soils are onlyit take to dark brown
Most need a does slightly air or Soils
It’s humus you place to It’s destroy the
And how long good supply ofacidic. they die.
Overwatering can Less than 10 the soil
theheather andformed them. lower pH,
on rocks that it may to stick years.
and layer moors remove the
same sticky of soil? helpshave a air from soil
but kill some plants.
particles together, keeping the juice.
and none are as acidic as lemon soil fertile.
Soil supports all the plant life on our planet.
It takes about 100 years for a few inches of
good soil to form.
And how long does it take to destroy the same
layer of soil?
Less than 10 years.
Camellias grow best in acid soils.
Some plants prefer neutral or
alkaline soils. Others aren’t fussy!
You can test the pH of your soil
using a kit based on universal
soil A soil B soil C indicator
1. To find out the pH of a soil sample I would...
a) heat it in a crucible
b) boil it with red cabbage
c) use a soil testing kit.
2. Which of these are useful mineral nutrients for
a) nitrates and phosphates
b) acetates and oxalates
c) saucers and dinner plates.
3. Air in soil is needed for...
a) respiration in roots
b) photosynthesis in roots
c) making roots rise.
4. To find the amount of water in soil I could...
a) add water until it cannot absorb any more
b) dry it in an oven and note the change in weight
c) see if seeds can germinate in it easily.