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Living Things-INCA

3rd Grade Science

amphibian A vertbrate that spends part of its life in water and part of its life on land.
bird A vertebrate that has a beak, feathers, wings, and two legs and lays eggs.
cell The basic building block that makes up all living things. You can use a microscope to see that a leaf is made up of many tiny cells.
environment All the living and nonliving things that surround an organism. Water, soil, rocks, trees, and zebras are parts of the giraffes' environment.
exoskeleton A hard covering, or shell, that holds up and protects an invertebrate's body. A snail's shell is an exoskeleton.
fish A vertebrate that lives in water and breathes oxygen with gills.
gills A structure some animals use to take in oxygen from water.
invertebrate An animal that does not have a backbone.
leaf The plant structure where a plant makes food.
lung A structure some animals use to take in oxygen from air. Humans breathe oxygen using lungs.
mammal A vertebrate that has hair or fur, is born live, and feeds its young with milk.
nutrient A substance that living things need to grow and stay healthy. Spinach has many nutrients that people need.
organism A living thing. Koala bears and eucalyptus trees are organisms.
photosynthesis The process through which plants make food.
reproduce To make more of one's own kind.
reptile A cold–blooded vertebrate that has scaly, waterproof skin, breathes air with lungs, and lays eggs.
respond To react to something. When the weather gets cool in the fall, some trees respond by losing their leaves.
root A plant structure that takes in water and nutrients and holds a plant in place.
shelter A place in which an animal can stay safe. A nest is a shelter for young birds.
stem A plant structure that holds a plant up and helps leaves reach sunlight.
structure A part of an organism. Horns are structures that help keep wild sheep keep safe.
vertebrate An animal with a backbone.
Created by: 1039532691