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Soil apps, data and maps: activities

Earthworm watch is a free activity digging and counting earthworms in you soil

Earthworm Watch 

A great, free, hands-on family activity for exploring the soil beneath your feet, and learning more about the wonders of earthworms.
OPAL England wide survey of soil quality and earthworm distribution

OPAL Soil & Earthworm Survey

An England wide survey that aimed build up a picture of soil quality and earthworm distribution all over the country.
Soil my undies burying cotton underpants to measure biological activity

Soil Your Undies

A free (and fun!) hands-on family, farmer or gardener activity for measuring soil biological activity by burying cotton underpants in the soil.