Life in the Dirt – Background

Unless we are gardening, farming, or digging a hole, we don’t think much about the dirt beneath our feet. And yet it teams with life, and within it are complex food webs and a host of interesting creatures. Here nutrients that were once part of living plants or animals become part of the soil again, eaten and digested by a multitude of organisms. As they eat, grow, or tunnel through the Earth, the many inhabitants of the soil have an important role in the making of soil and the ongoing life of terrestrial ecosystems, from the richest prairie to the rockiest northern forest.

Most people use the words “soil” and “dirt” interchangeably, meaning bits of Earth we have to sweep up or wash off. But to a scientist, soil is much more than Continue reading Life in the Dirt – Background

Life in the Dirt – Activities

 

FOCUS: Life abounds in the soil, from plant roots to earthworms to moles and millipedes. All these organisms play important roles in the flow of energy and matter through an ecosystem. Many soil critters act as decomposers, breaking down plant and animal materials and returning them as nutrients to the soil where other living things may use them again. The soil is a rich ecosystem teeming with life in a complex food web.

Introduction: (holding up a dish of soil) What do you think might live in this soil? What have you found when you’ve been digging in some dirt? Continue reading Life in the Dirt – Activities

Life in the Dirt – Puppet Show

Worm Wonderings

Characters: Woggle Worm, Wiggle Worm, Dandelion, Cicada, Mole

Woggle Worm Is that you, Wiggle?

Wiggle Worm Hi Woggle! It’s been a while since we’ve seen each other. What have you been up to?

Woggle  You mean down to. I’ve just been enjoying the dirt. And now that we’ve gotten some rain, it’s so easy to get around!

Wiggle             And easy to breathe. When you breathe through your skin, the way we worms do, you need to stay damp.  Continue reading Life in the Dirt – Puppet Show

Life in the Dirt – Standards

LIFE IN THE DIRT ALIGNMENT WITH
NEXT GENERATION SCIENCE STANDARDS

The activities in this unit help children understand the basic concepts in the Disciplinary Core Ideas listed here. You can use the following list as a guide for lesson planning. These Disciplinary Core Ideas are taken from Grade Band Endpoints in A Framework for K-12 Science Education. Additionally, our activities give children opportunities to engage in many of the Science and Engineering Practices and reflect on the Crosscutting Concepts as identified in the Next Generation Science Standards. Continue reading Life in the Dirt – Standards

Leaf Litter – Background

Under a leafy canopy, the shaded forest floor is a rich ecosystem teeming with life. Here in the leaf litter millions of small organisms – fungi and bacteria, springtails and mites, spiders and centipedes, are all part of a rich food web. These busy creatures have an important role in the flow of energy through the forest for many of them are decomposers, organisms that feed on dead plant and animal debris, releasing the nutrients so other living things can grow and thrive.

All the leaves, twigs, feathers, insect parts and other debris that falls on the forest floor form the leaf litter, a very important part of the forest. This blanket of dead organic matter provides homes and nesting material for many small mammals Continue reading Leaf Litter – Background

Leaf Litter – Activities

 

FOCUS: Under a canopy of trees, the forest floor is a cool, damp and protected environment. Here in the leaf litter millions of small organisms – fungi and bacteria, springtails and mites, spiders and centipedes and others – are all part of a rich food web. Many of these are decomposers, feeding on plant and animal remains and turning them back into soil.

Introduction: Bring in a garbage bag full of freshly fallen leaves. Pour them out onto a large sheet. Point out that these are just some of the leaves that fall from a single tree, each year. With so many leaves falling in a forest every year, why aren’t they piled up high in the forest? Continue reading Leaf Litter – Activities

Leaf Litter – Puppet Show

Characters: Woodcock, Dead Leaf, Millipede, Fungus, Eft, Springtail.

Wanda Woodcock  (dancing) Step to the right, give a little jiggle, step to the left , make the worms wiggle.

Dead Leaf  That’s a nice dance you’re doing, whoever you are.

Woodcock  I’m Wanda Woodcock, and I’m not dancing. I’m jiggling the ground to make the worms wiggle so I can catch ‘em!

Leaf  Good luck with that. At least you’re not trying to eat me. Everyone else on the forest floor wants to eat us dead leaves. Continue reading Leaf Litter – Puppet Show

Leaf Litter – Standards

LEAF LITTER ALIGNMENT WITH
NEXT GENERATION SCIENCE STANDARDS

The activities in this unit help children understand the basic concepts in the Disciplinary Core Ideas listed here. You can use the following list as a guide for lesson planning. These Disciplinary Core Ideas are taken from Grade Band Endpoints in A Framework for K-12 Science Education.
Additionally, our activities give children opportunities to engage in many of the Science and Engineering Practices and reflect on the Crosscutting Concepts as identified in the Next Generation Science Standards. Continue reading Leaf Litter – Standards