You don’t have to go far to see nature at work – bees visiting flowers, fireflies twinkling in a field, a hawk circling overhead. Less familiar, but right under our noses, are countless tiny animals busily feeding upon leaves or hiding in them from their predators. The signs of leaf-eaters, or leaf-hiders, are easy to find. Peer into any bush or tree and you are sure to see leaves that are chewed, rolled, folded, or sewn up with silk. Snails, aphids and caterpillars feed upon this bountiful food supply, while spiders and hunting insects prowl amidst the leaves. Looking for signs of leaf-eaters gives us a glimpse of an ecosystem in action.
The place where a plant or an animal lives is its habitat, where it has what it needs to survive – sun and soil, food and water, shelter from the weather and Continue reading Signs of Leaf Eaters – Background
FOCUS: By summer’s end, nearly every leaf bears some signs of feeding by plant-eaters small or large. Some make holes, some scallop the edges, some roll the leaves into tubes. Plants capture energy from the sun and, in turn, produce food for a variety of leaf-eaters. When we watch a leaf-eater feeding on a leaf – or being eaten by a predator – we are seeing the flow of energy from sun to plant to herbivore to carnivore. These interactions are evidence of food chains and webs, important components of every ecosystem.
Introduction: Hold up a leaf with leaf-eater damage of some kind. Ask the class, “What could have made these holes in this leaf?” Why is this important – what does it tell us about what’s happening outside?
PUPPET SHOW “Leaf-eaters and their Foes”
Objective: To meet some leaf-eaters and learn about the flow of energy through food chains in an ecosystem. Continue reading Signs of Leaf Eaters – Activities
Leaf-eaters and their Foes
Characters: Benjy Bear, Leafcutter Caterpillar on leaf, Chickadee, Gertie Grass, Grady Grasshopper, Freddie Fox
Benjy Bear Boy, my belly’s so full of berries, I need a nap. I’ll just lie down in the shade of this maple tree. (leaf enters) Why, look at that leaf. I wonder why it has those big holes in it?
Leafcutter They don’t call me a leafcutter for nothing!
Bear A leafcutter? You look like a caterpillar. Continue reading Signs of Leaf Eaters – Puppet Show
SIGNS OF LEAF-EATERS 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 Signs of Leaf Eaters – Standards
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
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
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 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