Ecosystems and Habitats Flashcards

Grade 3 · Science · Flashcards

Review the key vocabulary for understanding ecosystems, food chains, and how living things interact.

Flashcards

Ecosystem: All the living and nonliving things in an area that interact with each other.
Habitat: The specific environment where an organism lives and finds food, water, shelter, and space.
Biotic: The living parts of an ecosystem, including plants, animals, fungi, and bacteria.
Abiotic: The nonliving parts of an ecosystem, including water, sunlight, soil, and air.
Producer: An organism that makes its own food using sunlight through photosynthesis, such as plants and algae.
Consumer: An organism that gets energy by eating other organisms.
Decomposer: An organism that breaks down dead organisms and returns nutrients to the soil, such as fungi and bacteria.
Herbivore: An animal that eats only plants, such as a deer or caterpillar.
Carnivore: An animal that eats only other animals, such as a lion or hawk.
Omnivore: An animal that eats both plants and animals, such as a bear or raccoon.
Food chain: A sequence showing how energy passes from one organism to another through eating.
Food web: A diagram showing the many overlapping food chains in an ecosystem.
Photosynthesis: The process plants use to convert sunlight, water, and carbon dioxide into food (sugar) and oxygen.