SCIENCE MEANS “TO KNOW” SEEK TO KNOW MORE BY FINDING FACTS TIE FACTS TOGETHER TO EXPLAIN THINGS FACTS ARE GATHERED THROUGH OBSERVATION THEORY = LOGICAL EXPLANATION LAW = TESTED THEORY

Ecology Organism Population Community Ecosystem Biome Biosphere The study of organisms and their interactions with the environment Organism Ant Population Ants Ants, spiders, grass, frogs, flowers Community Ecosystem Forest ecosystem Biome Temperate Deciduous Forests Biosphere Earth

Biotic Factors = living organisms Abiotic Factors = physical features Ecosystems Biotic Factors = living organisms Abiotic Factors = physical features Examples: plants, trees, insects, mice, deer Examples: rocks, dirt, oxygen, nitrogen All living organisms in an ecosystem are called a community

Energy Pyramid 1 snake 10 sparrows 100 caterpillars 1000 grass plants Pyramid of Numbers 1000 grass plants 100 caterpillars 10 sparrows 1 snake