1. Chapter 2, lesson 1: Living and Nonliving Things

2. Properties You can tell a living thing from a nonliving thing by observing its properties. Property = a quality that describes an object. Can describe how an object looks or feels, behaves or act. All things have different properties from another living thing.

3. Properties of Nonliving things: They have properties that you can see and feel. How hard is it? What color is it? What is its shape or size?

4. Properties that nonliving things do not have: They do not carry out all of the basic life activities. It might carry out one or two, but not all of them. Ex. Sugar crystals can grow. Ex. Cars use gas as fuel and get rid of wastes. They are not made of cells.

5. Properties of Living Things: They have properties you can see and feel: Hard, texture, color, shape, size. They carry out all of the basic life activities:

6. Basic Life activities: Made of cells Get food Use food and produce wastes Movement Homeostasis Growth and development Reproduction Sense and respond

7. Living Things A living thing = organism A complete, individual living thing. Ex. You, a tiger, a butterfly, a bacteria, a pine tree It carries out all of the basic life activities. Organ in organism = “tool” in latin. A tool does a certain job; an organ does a certain job in a living thing.

8. Organs Organs are organized tissues and cells that carry out basic life activities. Examples: heart, lung, kidney, stomach, brain, leaf, stem, root.

9. Simple organisms Simple organisms don’t have organs. Some have organelles Organelles = like organs but they are inside the cell, they also do a certain job. Bacteria = the simplest organism single-celled organism. They don’t have organelles.